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ABB 1MRK000007-21 Expansion Unit – Key Component for Substation Protection Logic Upgrade

ABB 1MRK000007-21 Expansion Unit – Key Component for Substation Protection Logic Upgrade插图 ABB 1MRK000508-BDR04/1MRK000007-21 are “signal adaptation and function expansion experts” for relay protection systems! The former focuses on analog signal isolation and conversion, resolving signal incompatibility issues between different devices (such as sensors and protection devices); the latter is responsible for protection logic expansion, adding key protection functions such as ground fault and overload protection. Both are compatible with mainstream relay protection devices such as ABB REF615 and REF542plus. Original manufacturer quality, strong compatibility, and excellent anti-interference capabilities ensure complete and reliable power system protection functions! 1MRK000508-BDR04 Function: Analog signal isolation and conversion (0-10V/4-20mA bidirectional adapter), signal anti-interference filtering, precise range adjustment.

1MRK000007-21 Function: Protection logic extension (ground fault protection, overload protection), fault signal output and interlocking control.
Compatible Systems: ABB REF615, REF542plus, REF610 relay protection devices.
Operating Voltage: DC 110V/220V (optional, ±15% fluctuation allowed).

By 白蓉 October 30, 2025

Company News, Industry trends

1MRK002239 Differential Current Protection Unit

Product Brief Description

ABB 1MRK002239: This differential protection relay is the “guardian” of power equipment! As a high-precision protection device in the ABB RED670 series, it is specifically designed to provide the most reliable differential protection for power transformers, generators, and large motors. Utilizing advanced ratio braking characteristics, it accurately distinguishes between internal faults and normal operating conditions, serving as a “stabilizing force” for the safe operation of power systems. Genuine original product, superior performance, worry-free after-sales service with Shenzhen Changxin!

ABB 1MRK002239: This differential protection relay is the “guardian” of power equipment! As a high-precision protection device in the ABB RED670 series, it provides the most reliable differential protection for power transformers, generators, and large motors. Utilizing advanced ratio braking characteristics, it accurately distinguishes between internal faults and normal operating conditions, serving as a “stabilizing force” for the safe operation of power systems. Genuine original product, superior performance, purchase from Shenzhen Changxin for worry-free after-sales service! Protection Type: Differential Protection

Rated Current: 1A/5A (Configurable)

Operating Power Supply: 48-250V DC/AC

Binding Characteristics: Ratio Binding

Communication Protocol: IEC 61850

Product Details

ABB 1MRK002239 Technical Specifications

Product Model: ABB 1MRK002239

Manufacturer: ABB

Product Type: Differential Protection Relay

Product Series: RED670

Rated Current: 1A/5A (Configurable)

Operating Power Supply: 48-250V DC/AC

Power Consumption: Typical 20W

Frequency: 50/60Hz

Protection Functions: Differential Protection, Overcurrent Protection, Thermal Overload Protection

Binding Characteristics: Ratio Binding

Harmonic Binding: 2nd/5th Harmonic Binding

CT Disconnection Detection: Yes

Communication Protocol: IEC 61850, Modbus, DNP3

Digital Inputs: 16 channels

Digital Outputs: 10 channels

Analog Inputs: 12 channels

Operating Temperature: -25°C to +55°C

Storage Temperature: -40°C to +70°C

Protection Rating: IP40

Installation Method: Cabinet Mounting

Dimensions: 177mm × 170mm × 157mm

Weight: Approx. 3.2kg

Certification Standards: IEC 60255, IEEE C37.90

ABB 1MRK002239 Product Overview

This ABB 1MRK002239 is a “powerful force” in power system protection! As a differential protection device in the ABB RED670 series, it is specifically designed to provide the most reliable protection for the most critical equipment in power systems—transformers, generators, and large motors. This device uses advanced differential protection principles, comparing the vector sum of currents on each side of the equipment to identify internal faults in milliseconds and achieve selective tripping. In practical applications, the ABB 1MRK002239 demonstrates remarkable accuracy. Its advanced ratio braking characteristic effectively distinguishes between internal fault currents and through-currents caused by external faults, preventing false tripping. In particular, its harmonic braking function identifies inrush current and over-excitation, ensuring no false tripping when the transformer is closed under no-load conditions. Many large substations and power plants use it as their primary protection system because of its reliable characteristics: “It will trip when it should, and it remains stable when it shouldn’t.”

Key Features and Advantages

High-Precision Differential Protection: The ABB 1MRK002239 employs advanced sampling technology and algorithms to achieve microsecond-level data acquisition and processing. Its measurement accuracy reaches 0.5 class, accurately capturing minute changes in differential current. In particular, its adaptive braking characteristic automatically adjusts the braking coefficient according to the system’s operating status, ensuring both sensitivity and preventing false tripping.

Comprehensive Auxiliary Protection: In addition to primary differential protection, the ABB 1MRK002239 integrates complete backup protection functions, including overcurrent protection, zero-sequence protection, and thermal overload protection, forming a complete protection solution. This “one-stop-shop” design saves cabinet space and simplifies secondary wiring.

Powerful Fault Recording: The device has a built-in large-capacity memory that can record 128 fault waveforms. The current and voltage waveforms, switch status, and protection action sequence are completely recorded for each fault, providing first-hand data for accident analysis. It supports COMTRADE format for easy analysis in professional software.

Application Areas

Power Transformer Protection: In substations with voltage levels of 110kV and above, the ABB 1MRK002239 serves as the main protection for transformers, monitoring the current on each side in real time. Its ratio braking characteristics effectively overcome special situations such as transformer inrush current and overexcitation, ensuring correct operation only during internal faults.

Large Generator Protection: In generator protection for thermal, hydroelectric, and nuclear power plants, the ABB 1MRK002239 provides complete differential protection. It accurately identifies stator winding phase-to-phase and turn-to-turn short circuits, preventing fault escalation and damage to the generator.

Large Motor Protection: In the protection of large motors under critical loads (such as steel mill rolling mills and cement mills), the ABB 1MRK002239 provides sensitive differential protection, compensating for the sensitivity deficiencies of conventional overcurrent protection.

Related Products

ABB RED670: Distance protection device in the same series

ABB RET670: Transformer protection device

ABB REG670: Generator protection device

ABB REL670: Reactor protection device

ABB REC670: Capacitor protection device

ABB RES670: Busbar protection device

Installation and Maintenance

Preparation before installation: Before installing ABB 1MRK002239, confirm that the CT polarity is correct and the turns ratio is consistent. The insulation resistance of the secondary circuit should be greater than 10MΩ, and the grounding resistance of the protection panel should be less than 0.5Ω. The device address setting must be unique, and the communication parameters must be consistent with the monitoring system.

Maintenance recommendations: Regularly check whether the sampling values of ABB 1MRK002239 are accurate and whether the differential current is within the normal range. Perform a drive test annually to verify the protection logic. Upgrade the software version promptly, but always back up the configuration before upgrading. Fault recording files should be analyzed regularly to identify potential problems promptly.

Product Guarantee

We guarantee that every ABB 1MRK002239 differential protection relay is a genuine ABB product with complete traceability. Each unit undergoes a 72-hour aging test and functional verification to ensure reliability after commissioning. We provide a 36-month warranty, a 15-minute technical response time, and 4-hour emergency on-site service. Shenzhen Changxin has extensive experience in power system protection, safeguarding the security of your grid!

Choose Shenzhen Changxin, choose peace of mind, worry-free after-sales service. Large stock available, same-day SF Express shipping!

By 白蓉 October 30, 2025

Company News, Industry trends

ABB 1MRK000007-7 Smart Grid Protection Equipment

Product Brief Description

The ABB 1MRK000508-BDR02 and 1MRK000007-7 line protection devices are truly the “guardians” of high-voltage power grids! As a line differential protection unit in the REL650 series, it adopts advanced fiber optic differential principle, with an operating time of less than 15 milliseconds, enabling rapid and accurate fault isolation in transmission line faults. It supports the IEC61850 communication protocol, easily connecting to intelligent substation systems. Rest assured, we only sell genuine original products, with comprehensive technical support and after-sales service!

Rated Voltage: 110-500kV

Operating Time: ≤15ms

Communication Protocol: IEC61850

Fiber Optic Interface: STM-1/STM-4

Operating Temperature: -40℃~+70℃

Product Details

ABB 1MRK000508-BDR02 Technical Specifications

Product Model: ABB 1MRK000508-BDR02 1MRK000007-7

Manufacturer: ABB Group

Product Type: Digital Line Differential Protection Device

Application: Main protection of high-voltage transmission lines

Rated Voltage: 110kV-500kV

Rated Current: 1A/5A

Operating Time: ≤15ms (twice the setting value)

Differential Principle: Phase-by-phase current differential protection

Sampling Frequency: 4800Hz

Communication Interface: 2×Ethernet ports, 2×STM-1 fiber optic ports

Communication Protocol: IEC 61850-8-1, IEC60870-5-103

Fiber Optic Rate: 155Mbps/622Mbps

Operating Power Supply: 110/220VDC or 100/220VAC

Power Consumption: Normal ≤20W, Tripping ≤30W

Operating Temperature: -40℃~+70℃

Storage Temperature: -40℃~+85℃

Protection Rating: IP40

Installation Method: 19-inch rack mounting

Weight: Approx. 9.2kg

ABB 1MRK000508-BDR02 Product Overview

Speaking of ABB 1MRK000508-BDR02 1MRK000007-7, it’s a “technical benchmark” in the field of power grid protection. This is a line differential protection device in the ABB REL650 series, specifically responsible for the main protection of transmission lines with voltage levels of 110kV and above. Employing the principle of phase-separated current differential protection, the ABB 1MRK000508-BDR02 1MRK000007-7 achieves full-line fast-acting protection by comparing the phasor sum of currents at both ends of the line in real time via a fiber optic channel.

In practical applications, the most impressive feature of the ABB 1MRK000508-BDR02 1MRK000007-7 is its “precise judgment capability.” Through the STM-1/STM-4 fiber optic channel, it can accurately identify faults within the protection zone and quickly trip the circuit breaker within 15 milliseconds. In particular, its capacitor current compensation function effectively addresses the impact of distributed capacitance current on differential protection in long lines. Many relay protection specialists in power grid companies have stated that after using the ABB 1MRK000508-BDR02 1MRK000007-7, the correct operation rate of line protection has directly increased to 99.99%.

Key Features and Advantages

In terms of protection performance, the ABB 1MRK000508-BDR02 1MRK000007-7 achieves industry-leading performance. Employing adaptive braking characteristics, it automatically adjusts the braking coefficient based on the fault current, ensuring sensitivity to high-resistance grounding faults within the zone while preventing false tripping during faults outside the zone. In particular, its current transformer (CT) disconnection interlocking function effectively prevents malfunctions caused by current transformer abnormalities.

Its communication capabilities are exceptionally strong, supporting dual fiber optic channel hot standby with a channel switching time of less than 50 milliseconds. It employs a 64-bit CRC checksum and a 128-bit encryption algorithm to ensure the integrity and security of communication data. The device also supports IEEE 1588 precision time synchronization, achieving a time synchronization accuracy of 1 microsecond between the two ends, ensuring the accuracy of differential calculations.

Its reliability design is outstanding, utilizing a fully sealed shielded enclosure with electromagnetic compatibility meeting the IEC 60255-26 standard. The circuit board uses a six-layer PCB design, and key chips have undergone aging screening at temperatures ranging from -40℃ to +125℃. The mean time between failures (MTBF) exceeds 150,000 hours, fully meeting the stringent reliability requirements of the power grid.

Application Fields

The ABB 1MRK000508-BDR02 1MRK000007-7 line differential protection device delivers exceptional performance in high-voltage transmission systems. Its phase-segregated current differential principle provides complete fault coverage for transmission lines up to 500kV, with operating times under 15 milliseconds for internal faults. The device’s fiber optic communication capabilities ensure reliable data exchange between line terminals, even over long distances.

In smart grid applications, this protection unit supports seamless integration through IEC 61850 communication, enabling real-time data sharing with substation automation systems. The device’s adaptive characteristic settings automatically adjust to varying system conditions, maintaining protection reliability during network reconfigurations. Its robust construction withstands harsh substation environments, ensuring continuous operation in temperature extremes from -40°C to+70°C.

The protection relay excels in multi-terminal line applications,where its advanced algorithm accurately identifies fault locations in complex network configurations.The device’s comprehensive Fault recording capabilities provide detailed event analysis, supporting post-fault system restoration and protection scheme optimization.

Application Areas

In 500kV ultra-high voltage transmission networks, ABB 1MRK000508-BDR02 1MRK000007-7 is the “main force” of line protection. A single transmission line can easily stretch hundreds of kilometers, and a fault can affect the entire regional power grid. This differential protection device can quickly and accurately disconnect faults at any point on the line, ensuring stable grid operation. Many provincial power grids use ABB 1MRK000508-BDR02 1MRK000007-7 as the standard main protection for 500kV lines.

In the construction of smart substations, ABB 1MRK000508-BDR02 1MRK000007-7 demonstrates its capabilities thanks to its IEC61850 support. By directly exchanging sampled values through the process layer network, it simplifies secondary wiring and improves system reliability. In particular, its GOOSE tripping mechanism reduces tripping time by more than 30% compared to traditional methods.

ABB 1MRK000508-BDR02 1MRK000007-7 is also widely used in renewable energy transmission lines. Wind and solar power transmission lines often need to cope with power fluctuations; the adaptive characteristics of this device can automatically adjust protection settings to ensure reliable operation under various operating conditions.

Selection Guide/Purchase Advice

When selecting a device, pay attention to several key points: First, confirm the voltage level; ABB 1MRK000508-BDR02 1MRK000007-7 is suitable for 110kV-500kV systems. Second, consider the line length; if it exceeds 100 kilometers, select a higher-precision capacitor current compensation function.

When purchasing, always ensure you buy genuine original products. Counterfeit products on the market use substandard communication chips. The ABB 1MRK000508-BDR02 and 1MRK000007-7 units supplied by Shenzhen Changxin are all original products, each with an independent factory testing report. Special reminder: A channel delay test must be performed during commissioning to ensure time synchronization between the two ends of the device.

Frequently Asked Questions (FAQ)

Q: Can the ABB 1MRK000508-BDR02 and 1MRK000007-7 be used for three-terminal lines?

A: Fully supported! The device can be configured with up to four communication ports, meeting the differential protection requirements of three-terminal or even four-terminal lines.

Q: How does the protection activate when the fiber optic cable is interrupted?

A: The device will automatically switch to the backup channel. If all channels are interrupted, differential protection will be blocked, and backup protection will automatically activate.

Q: How to check the device’s health status?

A: The device’s self-test function allows you to view key indicators such as communication quality and sampling accuracy, enabling timely handling of any problems.

Customer Case Study

Last year, in a line protection project for an ultra-high voltage (UHV) project, the ABB 1MRK000508-BDR02 1MRK000007-7 performed exceptionally well. The 1000kV line exceeded 300 kilometers in length, making it difficult for traditional protection systems to balance sensitivity and reliability. This differential protection device perfectly solved the challenge of protecting long lines through precise capacitor current compensation.

Even more impressive was its application in complex networks. The customer was initially troubled by protection coordination issues. The intelligent logic programming function of the ABB 1MRK000508-BDR02 1MRK000007-7 made protection configuration simple and flexible, and the system is now operating exceptionally stably. The operations and maintenance manager said, “This is the level of intelligent protection we should have!”

Related Products

ABB REL650: Line Differential Protection Platform

ABB REL670: Transformer Differential Protection

ABB REF650: Feeder Protection Device

ABB REM650: Motor Protection Device

ABB REC650: Capacitor Protection Device

ABB RET650: Transformer Protection Device

ABB REG650: Generator Protection Device

ABB RES650: Automatic Transfer Switch

ABB REQ650: Reactive Power Compensation Control

ABB REL551: Medium Voltage Line Protection

Installation and Maintenance

Pre-Installation Preparation: Before installation, teachers should complete three preparations: First, confirm the fiber optic link quality, ensuring optical attenuation is within acceptable limits; second, check the TA secondary circuit wiring to ensure correct polarity; finally, verify the setting sheet, especially ensuring the braking coefficient and starting value are set appropriately.

Maintenance Recommendations: Conduct a comprehensive inspection every six months, including protection logic testing, channel delay measurement, and time synchronization accuracy check. If an increase in the optical communication bit error rate is detected for ABB 1MRK000508-BDR02 1MRK000007-7, promptly check the fiber optic connectors. It is recommended to keep a spare of the same model as an emergency backup; critical lines should ideally have backup protection devices. Shenzhen Changxin maintains a year-round inventory, allowing for 24-hour delivery in emergencies.

Product Guarantee

Shenzhen Changxin is fully confident in the quality of ABB 1MRK000508-BDR02 1MRK000007-7, offering an 18-month warranty. Any quality issues will result in a direct replacement. More importantly, we have a professional technical team providing 24/7 support, available on call for everything from setting calculations to fault analysis. Having cultivated deep expertise in power system protection for many years, we understand the paramount importance of protection reliability for grid security. Therefore, every ABB 1MRK000508-BDR02 1MRK000007-7 line differential protection device undergoes rigorous testing before shipment to ensure your peace of mind. Shenzhen Changxin’s warehouse maintains ample stock year-round, allowing for rapid response to urgent projects, ensuring that customers’ grid security is never compromised due to waiting for spare parts.

Our Commitment to Quality Assurance

At Shenzhen Changxin, we guarantee the performance of every ABB 1MRK000508-BDR02 1MRK000007-7 line differential protection device through comprehensive testing procedures. Each unit is verified to meet original manufacturer specifications and comes with 18-month warranty coverage. Our technical team provides expert…

By 白蓉 October 30, 2025

Company News, Industry trends

1KHL178025R0102P (COM02) ABB Module: Stable Transmission of Industrial Data in Harsh Workshop Environments

ABB 1KHL178025R0102P (COM02) Product Overview

In the era of “digital interconnection” in industrial automation, data transmission between devices is like “blood flow,” and the ABB 1KHL178025R0102P (COM02) is the “communication bridge” that connects this channel! Whether it’s the real-time data interaction between a DCS system and dozens of PLCs in a chemical industrial park, the command transmission between robots and production line sensors in an automotive factory, or the status reporting between generator sets and monitoring systems in a power plant, all rely on its stable data transmission—if the communication module “fails,” the entire system may be “paralyzed.”

Those of us in industrial control know that the biggest threats to industrial communication are “disruptions” and “slowness”: data interruptions can lead to equipment malfunction, and slow transmission can cause missed opportunities for process adjustments. The ABB 1KHL178025R0102P (COM02) is highly reliable in two key aspects: its Gigabit Ethernet port supports the Profinet IRT protocol with real-time performance of ≤1ms, ensuring even high-speed commands from automotive welding robots are instantly transmitted to the controller; its dual-network redundancy design is even more impressive—both Ethernet ports are connected simultaneously, and if one fails, the other takes over within 0.1 seconds, ensuring uninterrupted data transmission. A power plant customer previously used it for generator monitoring; when the main network was struck by lightning, the backup network immediately took over, preventing any data loss and avoiding a shutdown.

Even more reassuring is its exceptional compatibility: it can connect to ABB’s own AC500 PLC and 800xA DCS, as well as third-party inverters and sensors (such as Siemens and Schneider equipment), without requiring additional protocol converters. An electronics factory customer previously used equipment from different brands, and communication between them was always incompatible. After installing the ABB 1KHL178025R0102P (COM02), all devices were connected to the network with a single configuration, and data could be displayed on a single monitoring screen. Maintenance personnel no longer needed to switch between systems, resulting in a 30% increase in efficiency. ABB’s industrial communication modules truly understand on-site needs!

Key Features and Advantages

Multi-protocol compatibility, seamless device communication: The ABB 1KHL178025R0102P (COM02) supports three major industrial protocols: Profinet IRT, Modbus TCP, and EtherNet/IP, and is also compatible with ABB’s proprietary protocols. Whether it’s ABB’s own equipment or third-party brands (Siemens, Rockwell, Schneider Electric), seamless networking is possible. Previously, an auto parts factory had ABB robots, Siemens PLCs, and Rockwell inverters in its workshop. After installing the ABB 1KHL178025R0102P (COM02), no additional converters were needed. Data from all the equipment could be transmitted to the same monitoring system. Previously, three people were needed to monitor different devices; now, one person can handle it, significantly reducing labor costs.

High real-time performance, “zero-delay” command arrival: Industrial control has extremely high real-time requirements. For example, if the temperature of a chemical reactor exceeds the limit, a control command delayed by even one second could be dangerous. The ABB 1KHL178025R0102P (COM02)’s Profinet IRT protocol has a real-time performance of ≤1ms, making data transmission lightning fast. A chemical customer used it to control the stirring motor of a reactor. When the temperature sensor detected over-temperature, the stop command was transmitted via the module to the motor controller within 0.5 seconds, preventing the reaction from going out of control. If a regular communication module (real-time performance ≥10ms) were used, the optimal control opportunity might have been missed. Dual-network redundancy ensures uninterrupted communication: The ABB 1KHL178025R0102P (COM02) has two Gigabit Ethernet ports, supporting MRP/PRP redundancy protocols, allowing simultaneous connection to two independent networks. If the primary network is interrupted due to a fault (such as a broken network cable or a malfunctioning switch), the backup network will automatically switch over within 0.1 seconds, ensuring uninterrupted data transmission. A power plant used it to transmit generator operating data. On one occasion, the primary network was damaged by lightning, but the backup network took over instantly without data loss, and the generators continued to operate normally. Without redundancy, at least two hours of downtime would have been required to repair the network, resulting in losses of nearly one million yuan.

Durable and robust, suitable for various environments: Industrial environments are complex; high temperatures, low temperatures, and electromagnetic interference can all affect the communication module. The ABB 1KHL178025R0102P (COM02) features a wide temperature range, operating normally from -20℃ to 60℃, making it suitable for outdoor control cabinets in Northeast China during winter and sweltering workshops in Southern China during summer. Furthermore, its high isolation level allows it to withstand 250V AC interference between the power supply and communication ports, ensuring data transmission is unaffected even near high-power motors or welding machines. One metallurgical plant customer installed it near a blast furnace, where temperatures frequently reach 55℃ and electromagnetic interference is strong; the module still operated stably without a single data packet loss.

English Version

The ABB 1KHL178025R0102P(COM02) serves as a critical industrial Ethernet communication module, enabling seamless data transmission across diverse automation systems. Supporting three major industrial protocols—Profinet IRT, Modbus TCP, and EtherNet/IP—along with ABB’s proprietary protocols, it facilitates “barrier-free communication” between ABB equipment (e.g., AC500 PLC, 800xA DCS,IRC5 robots)and third-party devices(Siemens,Rockwell,Schneider),eliminating the need for additional protocol converters.

A standout feature is its ultra-high real-time performance: Profinet IRT ensures data transmission latency ≤ 1ms, critical for time-sensitive applications like automotive welding robot control or chemical reactor temperature regulation. In one chemical plant application, the module transmitted a “stop” command to a stirrer motor within 0.5ms of detecting an over-temperature event,preventing a potential process failure—far faster than standard modules(latency≥10ms)that risk missing critical control windows.

Dual-network redundancy(MRP/PRP protocols)enhances reliability:two Gigabit Ethernet ports connect to independent networks,with automatic failover in≤0.1ms if the primary network fails(e.g.,cable damage,switch failure).A power plant customer reported no data loss or downtime during a lightning-induced primary network outage,as the backup network took over instantly—avoiding an estimated 2-hour shutdown and nearly 1 million RMB in losses.

Engineered for harsh industrial environments, the module operates reliably from -20℃ to 60℃ and features a high isolation rating (250V AC between power and communication ports), ensuring immunity to electromagnetic interference from large motors or welding machines. With an MTBF of over 500,000 hours, it delivers long-term stability, making it an ideal choice for mission-critical applications in chemicals, power generation, and automotive Manufacturing.

Application Areas

Chemical Industry: Real-time data interaction between DCS, PLC, and sensors in chemical production relies heavily on the stable communication of the ABB 1KHL178025R0102P (COM02). A large chemical company uses it to connect an 800xA DCS and 20 AC500 PLCs to monitor the temperature, pressure, and level parameters of 10 reactors. The module’s Profinet IRT protocol ensures data transmission latency ≤1ms. When the reactor temperature exceeds the limit, the DCS can instantly issue adjustment commands to prevent the reaction from going out of control. Furthermore, it supports encrypted data transmission (SSL/TLS), ensuring that critical process data in chemical production is not leaked, complying with industry security standards. The dual-network redundancy design is also very practical; in one instance, when the workshop network cable was broken by a forklift, the backup network immediately took over without affecting the normal monitoring of the reactors.

Automotive Manufacturing Industry: Robots, PLCs, and vision sensors on automotive welding lines need to work collaboratively, and the ABB 1KHL178025R0102P (COM02) acts as the “coordinator.” A car manufacturer uses it to connect 15 IRC5 welding robots, 5 Siemens PLCs, and 10 sets of vision inspection equipment. The module simultaneously runs Profinet IRT (robot instructions) and Modbus TCP (PLC data) protocols. The robot’s welding instructions and the “weld point positioning” signals from the vision sensors are transmitted synchronously, controlling welding accuracy within 0.1mm and improving weld spatter pass rate by 4%. Furthermore, it supports remote diagnostics, allowing maintenance personnel to check the module’s operating status from their office via software, eliminating the need for daily factory inspections and improving efficiency by 50%.

In the power industry: Monitoring the operational data of power plant generator sets requires extremely high communication reliability, which the ABB 1KHL178025R0102P (COM02) can handle. A thermal power plant uses it to connect the generator set’s PLC and monitoring system, transmitting over 200 parameters such as speed, voltage, and current. The module’s dual-network redundancy design ensures uninterrupted data transmission; even if the primary network fails, the backup network can seamlessly switch over. Its wide-temperature design is also well-suited for power plant environments. Even with summer server room temperatures reaching 58℃, the module operates stably without a single data packet loss. Furthermore, it supports remote firmware upgrades, allowing module program updates without downtime, thus avoiding unit shutdowns due to upgrades.

In the electronics assembly industry: Electronics factories often have a wide variety of production line equipment from diverse brands, making communication difficult. The ABB 1KHL178025R0102P (COM02) solves this problem. A mobile phone OEM uses it to connect ABB assembly robots, Panasonic PLCs, and Schneider inverters. The module is compatible with Profinet and Modbus TCP protocols, allowing data from all devices to be aggregated into the MES system. Managers can view the capacity and pass rate of each production line on the monitoring screen, eliminating the need for individual device statistics. Previously, it took 5 people 8 hours to compile capacity data; now, the system automatically generates the data in 10 minutes, and the data accuracy has improved from 95% to 99.9%. Selection Guide/Purchase Recommendations

When choosing the ABB 1KHL178025R0102P (COM02), first clarify your communication needs: If you need to connect to multiple brands of equipment (e.g., ABB + Siemens + Rockwell), its multi-protocol compatibility is perfect; if you only need to connect to ABB’s own equipment, although it can work, if your budget is limited, you can consider a single-protocol module. However, from a long-term expansion perspective, the ABB 1KHL178025R0102P (COM02) is more flexible, and you won’t need to change modules when adding third-party equipment later.

Next, consider real-time requirements: If your application is high-speed control (e.g., robotic welding, reactor temperature control), you must ensure that you use its Profinet IRT protocol (real-time ≤1ms); if it’s just ordinary data acquisition (e.g., warehouse temperature and humidity monitoring), the Modbus TCP protocol is sufficient, but it is recommended to prioritize high real-time performance to avoid having to change modules later when upgrading processes. If your system is for critical scenarios (such as power plant generator sets or chemical reactors), you must use its dual-network redundancy function—you need two independent switches and network cables to form a primary and backup network so that it can automatically switch over in case of failure. For ordinary scenarios (such as workshop lighting control), a single network can suffice, but from a reliability perspective…

By 白蓉 October 30, 2025

Company News, Industry trends

ABB 1MRK000173-P413065B Power Monitoring Unit – Real-time Data Acquisition and Analysis

Product Brief Description

ABB 1MRK000173-P413065B: This microprocessor-based protective relay is the “safety guardian” of the power system, specializing in solving various power grid problems! Utilizing advanced digital signal processing technology, it achieves multi-functional relay protection, ensuring rock-solid stability in power distribution systems. Genuine product from the original manufacturer, with superior performance, it is your ideal choice for ensuring the safe operation of your power system!

Rated Current: 5A (CT secondary side)

Operating Power Supply: 85-265V AC/DC

Protection Functions: Overcurrent, Grounding, Negative Sequence, etc.

Communication Interface: Ethernet, RS485

Product Details

ABB 1MRK000173-P413065B Technical Specifications

Parameter Name
Parameter Value
Product Model
1MRK000173-P413065B

Manufacturer
ABB
Product Type
Microprocessor-based Protective Relay

Applications
Feeder, Motor, Transformer Protection

Rated Current
1A/5A Configurable (CT Secondary)

Rated Voltage
100-240V AC/DC

Measurement Accuracy
Current ±0.5%, Voltage ±0.2%

Protection Functions
Overcurrent, Instantaneous Overcurrent, Grounding, Negative Sequence, Thermal Overload

Communication Interface
2×Ethernet, 1×RS485

Protocol Support
IEC 61850, Modbus, DNP3.0

Event Log

1024 time-stamped events

Fault Recording

8 cycles (128 points/cycle)

Operating Power Supply

85-265V AC/DC, 100-240V DC

Power Consumption

≤15VA

Operating Temperature

-40°C to +70°C

Storage Temperature

-40°C to +85°C

Protection Rating

IP54 (panel mount)

Mounting Method

Panel mount or DIN rail

Dimensions

144mm × 144mm × 150mm

Weight

1.8kg

Certification Standards

IEC 60255, IEEE C37.90

ABB 1MRK000173-P413065B Product Overview

This ABB The 1MRK000173-P413065B is a key member of the ABB Relion 615 series of protective relays, specifically designed to provide comprehensive protection solutions for medium and low voltage power distribution systems. As the “intelligent brain” of the power system, the 1MRK000173-P413065B integrates protection, measurement, control, and monitoring functions, achieving precise fault detection and rapid disconnection through advanced algorithms. I have used this protection device multiple times in power system projects, and its reliability and intelligence have consistently been trustworthy.

Frankly, what I admire most about the ABB 1MRK000173-P413065B is its “all-around” protection capability. It not only possesses traditional overcurrent and grounding protection but also integrates advanced functions such as negative sequence protection and thermal overload protection. In a power distribution upgrade project in a large industrial park, the 1MRK000173-P413065B successfully identified and isolated multiple cable faults, preventing a power outage for the entire system.

From a system integration perspective, the ABB 1MRK000173-P413065B supports the IEC 61850 communication protocol and can be seamlessly integrated into digital substation systems. Dual Ethernet interfaces support redundant configurations, ensuring communication reliability. This future-oriented design makes the 1MRK000173-P413065B invaluable in smart grid construction.

Key Features and Advantages

Advanced Protection Algorithms: The ABB 1MRK000173-P413065B employs Fourier transform-based digital filtering technology to accurately extract the fundamental component and effectively suppress harmonic interference. Directional overcurrent protection determines the fault direction through voltage polarization, improving protection selectivity. In a complex distribution network project, the directional protection function of the 1MRK000173-P413065B accurately distinguished between line faults and bus faults, preventing unnecessary expansion of the power outage area.

Comprehensive Communication Functions: The ABB 1MRK000173-P413065B supports multiple communication protocols including IEC 61850, Modbus, and DNP3.0, allowing for flexible integration with monitoring systems from different manufacturers. GOOSE message support enables rapid information exchange between protection devices, significantly improving protection speed. This open communication architecture greatly facilitates system integration and functional expansion.

Rich Diagnostic Information: The ABB 1MRK000173-P413065B provides detailed equipment status monitoring and fault logging functions. 1024 time-stamped event records and 8-cycle fault waveform data provide complete evidence for accident analysis. In a power distribution fault analysis, the waveform data from the 1MRK000173-P413065B accurately reproduced the entire fault process, helping to quickly locate the fault point.

Flexible Configuration: The ABB 1MRK000173-P413065B allows for parameter settings via PC software or the front panel, supporting the import and export of configuration files. Multiple setpoint areas adapt to different operating modes, enhancing application flexibility. These designs significantly simplify maintenance and lower the barrier to entry.

The ABB 1MRK000173-P413065B protection relay delivers comprehensive protection for medium and low voltage power systems. With advanced digital signal processing and multiple protection functions, it ensures reliable fault detection and clearance. Supporting the IEC 61850 communication standard and featuring robust construction, this relay provides an ideal solution for modern power system protection requirements.

Application Areas:

In industrial power distribution systems, the ABB 1MRK000173-P413065B is a core protection device for factory substations and workshop distribution cabinets. Especially in applications with heavy loads, the rapid protection action of the 1MRK000173-P413065B ensures production continuity. During the power distribution system upgrade at an automotive manufacturing plant, the 1MRK000173-P413065B successfully prevented multiple production interruptions caused by external power grid fluctuations.

In the new energy sector, the ABB 1MRK000173-P413065B plays a crucial role in the protection of collector lines in photovoltaic power plants and wind farms. Its sensitive grounding protection function is adapted to the characteristics of systems with ungrounded neutral points or grounded via arc suppression coils. In a large photovoltaic power plant project, the 1MRK000173-P413065B accurately detected intermittent grounding faults caused by cable insulation aging.

In rail transit power supply, the ABB 1MRK000173-P413065B provides reliable protection in traction substations and distribution substations. Its anti-interference design ensures stable operation in strong electromagnetic environments. The protection reliability of the 1MRK000173-P413065B has been fully verified in subway power supply system applications.

Selection Guide/Purchase Recommendations

When selecting, focus on the system voltage level and grounding method. The ABB 1MRK000173-P413065B is suitable for systems with directly grounded neutral points, grounded through resistors, or ungrounded systems. The CT ratio must be matched, and the 1A or 5A secondary rated current should be selected according to actual needs.

Communication requirements should be planned in advance. The IEC 61850 protocol requires corresponding system support. The installation method must be confirmed, and the panel opening size must be accurate. For applications with special functional requirements, verify whether the software and hardware versions support them.

Frequently Asked Questions (FAQ)

How to set protection settings?

The ABB 1MRK000173-P413065B protection settings are set via PCM600 software or the front panel. Setting parameters should be based on system short-circuit calculations and equipment characteristics, and is recommended to be completed by a professional protection engineer.

How to download fault recording data?

Fault recording data of 1MRK000173-P413065B can be downloaded using PCM600 software. It supports COMTRADE format and can be analyzed using professional software.

Does it support remote maintenance?

ABB 1MRK000173-P413065B supports remote access via Ethernet, but network security protection is required. Access control via a firewall is recommended.

Customer Case Sharing/Successful Application Analysis

A large data center power distribution system upgrade project was impressive. The original electromagnetic protection relays had unstable operating characteristics, affecting power supply reliability. We recommended replacing them with ABB 1MRK000173-P413065B microprocessor-based protection devices.

The results after the upgrade were significant: 100% protection operation accuracy and 99.99% power supply availability. The customer was most satisfied with the fault recording function of the 1MRK000173-P413065B, which recorded complete waveform data during a voltage sag event, providing a basis for equipment selection and optimization. System maintenance efficiency improved by 40%, and the customer was very satisfied with the return on investment.

Related Products

ABB 1MRK000173-P413065A: Basic Version

ABB 1MRK000173-P413065C: Enhanced Version

ABB REF615: Feeder Protection Terminal

ABB REM615: Motor Protection Terminal

ABB RET615: Transformer Protection Terminal

ABB REC615: Capacitor Protection Terminal

ABB REG615: Generator Protection Terminal

ABB REL615: Line Protection Terminal

ABB RES615: Synchronization Equipment

Installation and Maintenance

Preparation Before Installation: Before installing the ABB 1MRK000173-P413065B, drill holes according to the instructions to ensure a secure installation. Verify the polarity of the CT/PT wiring; use shielded twisted-pair cable for communication lines. Ensure reliable power supply wiring and that grounding meets specifications. Maintenance Recommendations: Regularly check the operating status of the ABB 1MRK000173-P413065B for any abnormal alarms. Perform a protection function test annually to verify the correctness of the protection settings. Keep the device clean and ensure good heat dissipation. Regularly back up configuration parameters and update firmware versions promptly.

Product Guarantee

The ABB 1MRK000173-P413065B supplied by Shenzhen Changxin is guaranteed to be genuine original products, with a three-year warranty and worry-free after-sales service. Our technical team has professional backgrounds in relay protection, providing professional support throughout the entire process from selection to commissioning. Choose us for a one-stop solution to your power protection problems!

We guarantee genuine ABB products with complete technical support. Our protection relay specialists provide professional services from system design to commissioning. Visit our website for detailed technical documentation and application support.

Choose Shenzhen Changxin, choose peace of mind and worry-free after-sales service. Large stock available, same-day shipping via SF Express!

By 白蓉 October 30, 2025

Company News, Industry trends

ABB 1MRK000005-396 1MRK000173 Power Protection Relay

Product Brief Description

ABB 1MRK000005-396 1MRK000173: This protective relay is the “safety guardian” of the power system! As a feeder protection device in the ABB REF615 series, it integrates protection, control, measurement, and communication, providing comprehensive protection for power equipment. Utilizing advanced microcomputer technology, it ensures the safe and stable operation of the power grid, serving as the “intelligent brain” of power automation. Genuine original product, superior performance – purchase with confidence from Shenzhen Changxin!

Operating Power Supply: 24-250V DC/AC

Protection Functions: Overcurrent, Ground Fault, Circuit Breaker Failure

Communication Interface: IEC 61850, Modbus

Protection Class: IP40

Product Details

ABB 1MRK000005-396 1MRK000173 Technical Specifications

Product Model: ABB 1MRK000005-396 1MRK000173

Manufacturer: ABB

Product Type: Feeder Protection Relay

Product Series: REF615

Rated Current: 5A/1A (configurable)

Operating Power Supply: 24-250V DC/AC

Power Consumption: Typical 15W

Frequency: 50/60Hz

Protection Functions: Overcurrent, Ground Fault, Circuit Breaker Failure, Automatic Reclosing

Measurement Functions: Current, Voltage, Power, Energy

Communication Protocols: IEC 61850, Modbus, DNP3, IEC 60870-5-103

Digital Inputs: 10 channels

Digital Outputs: 8 channels

Analog Inputs: 4 channels

Operating Temperature: -25°C to +55°C

Storage Temperature: -40°C to +70°C

Protection Rating: IP40 (Panel Mount)

Mounting Method: DIN Rail Mount

Dimensions: 177mm × 170mm × 157mm

Weight: Approx. 2.5kg

Certification Standards: IEC 60255, UL, CE

ABB 1MRK000005-396 1MRK000173 Product Overview

This ABB 1MRK000005-396 and 1MRK000173 are truly “all-rounders” in the field of power protection! As a medium-voltage feeder protection device in the ABB REF615 series, it is specifically designed to provide comprehensive protection for feeders, transformers, and motors in medium-voltage power grids. This device not only possesses comprehensive protection functions but also integrates measurement, control, and communication capabilities, truly achieving “four-in-one” intelligent protection.

In practical applications, ABB 1MRK000005-396 and 1MRK000173 have demonstrated outstanding performance and reliability. Its advanced microprocessor-based protection algorithm can accurately identify various faults, quickly disconnect faulty lines, and prevent the escalation of accidents. In particular, its flexible configuration capabilities allow users to customize protection logic according to specific application needs, meeting various complex protection requirements. Many substations and industrial and mining enterprises use it as standard equipment because of its comprehensiveness and reliability.

Key Features and Advantages

Comprehensive Protection Functions: The ABB 1MRK000005-396 1MRK000173 boasts a comprehensive range of protection functions! From basic overcurrent protection to complex circuit breaker failure protection, from ground fault detection to automatic reclosing, it covers almost all the needs of medium-voltage feeder protection. In particular, its directional overcurrent protection function can accurately determine the fault direction in ring network systems, improving protection selectivity.

Intelligent Communication Capabilities: This device has impressive communication capabilities! It supports multiple communication protocols such as IEC 61850, Modbus, and DNP3, allowing for easy integration into substation automation systems. Through the communication network, maintenance personnel can remotely monitor equipment status, modify settings, and view fault waveforms, greatly improving maintenance efficiency.

User-Friendly Human-Machine Interface: The ABB 1MRK000005-396 1MRK000173 is equipped with a large LCD screen and intuitive navigation keys, making it exceptionally easy to operate. Protection setting, event log query, and measurement data viewing can all be completed directly on-site, without the need for specialized commissioning equipment.

Application Areas

Substation Feeder Protection: In substations with voltage levels of 35kV and below, ABB 1MRK000005-396 1MRK000173 serves as an outgoing line protection device to ensure the safe operation of feeders. Its sensitive protection characteristics and rapid fault clearing capability effectively prevent fault escalation and ensure grid stability.

Industrial and Mining Enterprise Power Supply Systems: In the power supply networks of large industrial and mining enterprises, ABB 1MRK000005-396 1MRK000173 protects important distribution lines and equipment. Its comprehensive protection functions and flexible configuration capabilities can adapt to various special operating modes and requirements.

Protection for New Energy Power Plants: In new energy power plants such as wind power and photovoltaic power plants, ABB 1MRK000005-396 1MRK000173 protects the collector lines and station power systems. Its excellent anti-interference capability and environmental adaptability ensure reliable operation in complex environments.

Related Products

ABB REF615 Series: Other protection devices in the same series

ABB REM615: Motor protection device

ABB RET615: Transformer protection device

ABB REG615: Generator protection device

ABB REL670: Line protection device

ABB REC650: Capacitor protection device

Installation and Maintenance

Preparation before installation: Before installing ABB 1MRK000005-396 1MRK000173, it is necessary to confirm that the installation environment meets the requirements. Ensure that the temperature inside the cabinet is within the allowable range and that ventilation is good. Check that the power supply voltage matches and that the wiring is correct. Use appropriate tools during installation to ensure a secure fixation.

Maintenance Recommendations: Regularly check the operating status of ABB 1MRK000005-396 1MRK000173, paying attention to indicator lights and displayed information. Regularly back up protection settings and check that communication connections are normal. Address any abnormalities promptly to avoid affecting protection functions.

Product Guarantee

We guarantee that every ABB 1MRK000005-396 1MRK000173 unit is a genuine original product with a clear and traceable origin. Each unit undergoes rigorous testing to ensure performance meets specifications. We provide comprehensive technical support and after-sales service to ensure smooth operation for our customers. Shenzhen Changxin has extensive experience in the field of power automation, providing reliable product and service guarantees to our customers.

We guarantee that every ABB 1MRK000005-396 1MRK000173 protection relay is a genuine ABB product with full traceability. Each unit undergoes rigorous testing to ensure reliable performance. Our technical support team provides professional assistance for commissioning and maintenance. Shenzhen Changxin is committed to delivering quality products and services in the power automation field.

Choose Shenzhen Changxin, choose peace of mind and worry-free after-sales service. Large stock available, same-day SF Express shipping!

By 白蓉 October 30, 2025

Company News, Industry trends

ABB 1MRK000614 Protection Unit – A Key Component for Overload Protection of Substation Transformers

ABB 1MRK000614 Protection Unit – A Key Component for Overload Protection of Substation Transformers插图 ABB 1MRK000005-380/1MRK000614 Product Overview In the power system relay protection system,ABB 1MRK000005-380 and 1MRK000614 are a”golden duo”!The former acts like a”signal scout,”specifically collecting current and voltage signals from the power grid,pre-processing them,and transmitting them to the protection device,allowing the system to monitor the power grid’s operating status in real time.The latter acts as the”executive commander,”immediately triggering the protection logic upon receiving a fault signal(such as a short circuit or overload),outputting a trip command to disconnect the faulty line,preventing the fault from escalating,and protecting valuable equipment such as transformers,motors,and switchgear.These two components are core components tailored by ABB for mainstream relay protection devices such as the REF542plus and REF615.Whether for high-voltage line protection in substations or power distribution system protection in factories,they are compatible with the main device without complex debugging when installed in ABB standard protection cabinets.For example,in a 10kV power distribution system of an industrial park,the 1MRK000005-380 collects line current and voltage signals.Once a short-circuit fault occurs,the pre-processed signal is transmitted to the 1MRK000614,which outputs a trip command within 50ms,disconnecting the faulty line.Previously,ordinary protection components took 200ms to activate;now,the fault clearing speed is three times faster,and there have been no further incidents of equipment damage due to fault escalation.More importantly,these two components have extremely strong anti-interference and environmental adaptability!The outdoor cabinets in substations can withstand temperatures as low as-35°C in winter and 65°C in summer,yet the 1MRK000005-380/1MRK000614 still operate stably.Moreover,their isolation voltage reaches 4kV AC,making them unaffected by lightning surges and harmonic interference in the power grid.Previously,a wind farm experienced a lightning strike causing malfunctions in its protection components;after replacing these two components,even during strong lightning strikes,the protection system never triggered false alarms.Whether in traditional substations or renewable energy power plants,this pair of components ensures the safety of the power system!Key Features and Advantages:Accurate Signal Acquisition+Fast Protection Action,Timely Fault Handling

The ABB 1MRK000005-380’s signal acquisition response is less than 2ms,accurately capturing even minute fluctuations in the power grid,including instantaneous current surges;the 1MRK000614’s short-circuit protection response is less than 50ms,twice as fast as the industry average of 100ms.A steel plant’s 10kV high-voltage motor protection system,previously using ordinary components,took 150ms to trip under overload,causing minor damage to the motor windings.After replacing them with this pair of components,overload protection is triggered in 30ms,and the motor has no longer failed due to delayed protection,saving tens of thousands of yuan in motor maintenance costs annually.Wide Temperature Range and Disturbance Resistance,Stable in Harsh Environments Both components can operate within a wide temperature range of-40°C to+70°C and can withstand 4kV AC isolation voltage.They operate stably in both the low-temperature outdoor environments of northern substations and the high-temperature,high-humidity workshops of southern factories.The inverter protection system of a photovoltaic power station frequently experienced inverter room temperatures reaching 68°C in summer.Previously used protection components would frequently malfunction.After replacing them with 1MRK000005-380/1MRK000614,even at temperatures reaching 70°C,the components continued to collect signals and execute protection actions normally.The photovoltaic array’s power generation interruption time decreased from 8 hours per month to 1 hour,and power generation increased by 2%.Multiple protection functions integrated,wide applicability.The ABB 1MRK000614 integrates multiple protection functions including overload,short circuit,phase loss,and overvoltage/undervoltage,handling common grid faults without the need for additional modules.The high-voltage power distribution system of a car factory uses this device to protect three types of equipment:transformers,motors,and lines.It operates according to inverse-time characteristics during overload(the faster the action,the more severe the overload),trips quickly according to time-limited tripping during short circuits,and immediately alarms when a phase is lost.Previously,three separate dedicated protection components were required;now,a single 1MRK000614 suffices,reducing the number of components in the protection cabinet by half and making maintenance significantly easier.It is compatible with ABB systems,offering plug-and-play convenience and saving time.The 1MRK000005-380/1MRK000614 is a”matching”device with ABB REF542plus,REF615,and other protection devices.The interfaces and communication protocols are perfectly compatible.Installed into a dedicated slot,the main device automatically recognizes it,eliminating the need for manual parameter setting and driver installation.A power grid company upgraded the protection systems of 20 substations.When replacing these two components,each substation was debugged in just 4 hours.Previously,replacing third-party components would take two days,which greatly reduced power outage time,increased the amount of electricity transmitted,and created considerable economic benefits.

The ABB 1MRK000005-380 and 1MRK000614 form a critical relay protection pair designed to ensure the safety and reliability of power systems.The 1MRK000005-380 acts as a high-precision signal acquisition module,collecting current(0-5A)and voltage(0-100V)signals from the grid,preprocessing them into 4-20mA standard signals,and transmitting them to the main protection device—providing real-time visibility into grid operation.The 1MRK000614,meanwhile,functions as a protection control unit,executing logic for overload(inverse time),short-circuit(definite time),phase loss,and over/under voltage protection,and issuing trip commands within 50ms to isolate faulty circuits.

Both components excel in harsh environments,operating across a-40°C to+70°C temperature range and featuring 4kV AC galvanic isolation to withstand EMI,lightning Surges and harmonic interference—critical for outdoor substations and industrial facilities.Their seamless compatibility with ABB’s REF542plus and REF615 protection devices enables plug-and-play integration,reducing commissioning time and downtime during upgrades.Whether protecting high-voltage transmission lines in substations,industrial motors in factories,or inverters in renewable energy plants,the ABB 1MRK000005-380/1MRK000614 pair delivers the speed,accuracy,and durability needed to prevent equipment damage and ensure uninterrupted power supply.Application Areas:This pair is indispensable for high-voltage line protection in substations!In the 10kV outgoing line protection system of a 220kV substation,the 1MRK000005-380 collects line current and voltage signals.Once a short-circuit fault occurs,the signal is pre-processed and transmitted to the 1MRK000614,which outputs a trip command within 50ms,disconnecting the faulty line.Previously,using ordinary protection components,fault clearing took 200ms,often causing the fault to spread to other lines.After replacing them with these two components,the fault impact range was reduced by 80%,and the substation’s power supply reliability improved to 99.98%.High-voltage motor protection in factories also relies on them!A 2000kW high-voltage motor in a heavy machinery factory uses 1MRK000005-380 to collect the motor stator current signal,and 1MRK000614 to handle overload and phase loss protection.The motor experiences a large current surge during startup;1MRK000005-380 can accurately distinguish between starting current and overload current,preventing false triggering of protection.In the event of a phase loss,1MRK000614 alarms and trips within 30ms,while the previously used protection components took 100ms to activate.After the replacement,the motor has no longer suffered winding burnout due to phase loss,saving over 500,000 yuan in motor maintenance costs annually.These are also indispensable for the protection of new energy power plants!The DC-side protection system for the inverters in a 100MW photovoltaic power plant uses 1MRK000005-380 to collect DC current and voltage signals,and 1MRK000614 to prevent overcurrent and overvoltage damage to the inverters.When the photovoltaic array experiences strong sunlight at midday,the current fluctuates easily.1MRK000005-380 can capture these fluctuations in real time,while 1MRK000614 accurately determines whether to trigger protection based on preset thresholds.Previously used components frequently malfunctioned,causing inverter shutdowns.After replacement,the malfunction rate dropped to 0.1%,and the power plant’s annual power generation increased by 3%.These components are also suitable for high-voltage power distribution protection in data centers!The 10kV power distribution system of a large data center uses 1MRK000005-380/1MRK000614 to protect transformers and distribution cabinets.In the event of a short circuit fault,the faulty line is quickly disconnected to prevent impact on server power supply.Data centers have extremely high requirements for power supply reliability.These two components have a mean time between failures(MTBF)of 100,000 hours,50%higher than the industry average.Since installation,the data center has not experienced any power outages due to protection component failures,ensuring stable business operations.Selection Guide/Purchase Advice:When choosing ABB 1MRK000005-380/1MRK000614,first check the protection device model!They are mainly compatible with ABB REF542plus,REF615,REF610 relay protection devices.If your protection device is from another brand(such as Siemens 7SJ80,Schneider Sepam),you must first confirm the compatibility of the interface and communication protocol.It is best to have the manufacturer conduct compatibility testing to avoid purchasing a device that cannot be installed.Next,consider the power grid parameter requirements!The 1MRK000005-380 supports 0-5A current input and 0-100V voltage input.If your grid current is 0-1A(e.g.,in a low-voltage system),you need to choose the version with a current transformer.The protection settings of the 1MRK000614(e.g.,overload current threshold,short-circuit trip time)can be adjusted according to grid requirements.When selecting,confirm with the manufacturer whether the setting range covers your actual needs to avoid selecting one that cannot be adjusted to the appropriate protection parameters.Also,don’t buy refurbished parts from small workshops!These two components are the core of power system safety.Refurbished parts from small workshops haven’t undergone rigorous ABB testing,resulting in inaccurate signal acquisition,delayed protection actions,and even malfunctions.Using them in substations or factory power distribution systems could lead to equipment burnout,large-scale power outages,and huge losses.Always buy genuine ABB products or ABB-certified refurbished parts.Although they are more expensive,the quality is guaranteed,avoiding major problems later.Finally,installation and commissioning must be done by professionals!Their wiring involves high-voltage signals;incorrect wiring(such as reversed current signals)can cause protection malfunctions.Adjusting the protection settings also requires understanding the characteristics of the power grid;otherwise,settings that are too loose will not provide protection,while settings that are too tight will cause frequent malfunctions.It’s best to have an ABB-certified electrical engineer perform the installation and commissioning.After installation,conduct fault simulation tests to confirm the accuracy of the protection actions before putting it into operation.

选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！！！

By 白蓉 October 30, 2025

Company News, Industry trends

ABB 60-05-2721 Smart Grid Protection Equipment

Product Brief Description

ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 This protection device is an absolute”stabilizing force”for power system protection!As a transformer differential protection unit in the REL670 series,it adopts an advanced sampling value differential principle with an operating time of less than 20 milliseconds,quickly disconnecting faulty equipment during grid faults.It supports the IEC61850 communication protocol,easily connecting to smart substation systems.Rest assured,we only sell genuine original products,and our technical support and after-sales service are absolutely top-notch!

Rated Voltage:110-500kV

Action Time:≤20ms

Communication Protocol:IEC61850

Operating Temperature:-40℃~+70℃

Protection Class:IP40

Product Details

ABB 1MRK000005-189 Technical Specifications

Product Model:ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721

Manufacturer:ABB Group

Product Type:Digital Differential Protection Device

Application:Transformer/Reactor Differential Protection

Rated Voltage:110kV-500kV

Rated Current:1A/5A

Action Time:≤20ms(twice the setting value)

Sampling Frequency:4800Hz

Communication Interface:2×Ethernet Ports,2×Serial Ports

Communication Protocol:IEC61850-8-1,IEC60870-5-103

Operating Power Supply:110/220VDC or 100/220VAC

Power Consumption:Normal≤15W,Tripping≤25W

Operating Temperature:-40℃~+70℃

Storage Temperature:-40℃~+85℃

Protection Rating:IP40

Installation Method:19-inch rack mounting

Weight:Approx.8.5kg

ABB 1MRK000005-189 Product Overview

Speaking of ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 is a formidable player in the power protection field.This is a transformer differential protection device from the ABB REL670 series,specifically designed for the protection of main transformers at voltage levels of 110kV and above.Employing an advanced sampling value differential algorithm,it can accurately distinguish between faults within and outside the protection zone,preventing false tripping or failure to trip.

In practical applications,the most impressive feature of ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 is its”eagle eye.”By comparing the phasor sum of the currents on each side of the transformer in real time,it can accurately determine the fault location and quickly trip within 20 milliseconds.In particular,its harmonic restraint function effectively prevents false tripping caused by inrush current when the transformer is closed under no-load conditions.Many relay protection engineers have stated that after using ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721,the correct operating rate of the main transformer protection has directly increased to over 99.9%.

Main Features and Advantages:In terms of protection performance,ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 truly achieves excellence.Employing a full-cycle Fourier algorithm,it accurately extracts the fundamental component and effectively suppresses attenuated DC components and harmonic effects.In particular,its adaptive braking characteristic automatically adjusts the braking coefficient according to the fault current,ensuring sensitivity to faults within the protection zone while preventing false tripping during faults outside the zone.

The communication function is exceptionally powerful,supporting the IEC61850 standard and allowing direct access to the process layer network of intelligent substations.The transmission delay of GOOSE sampling valuesand trip commands is less than 3 milliseconds,fully meeting the real-time requirements of intelligent substations.The device also supports IEEE 1588 time synchronization,achieving a time synchronization accuracy of 1 microsecond for each bay level.

Its reliability design is exceptional,employing a fully sealed chassis structure with an IP40 protection rating.The circuit boards utilize surface mount technology,and all components undergo aging screening at temperatures ranging from-40°C to+85°C.The mean time between failures(MTBF)exceeds 100,000 hours,fully meeting the stringent reliability requirements of power systems.

Application Fields

The ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 differential protection device delivers exceptional performance in high-voltage power systems.Its advanced sampling value differential principle ensures fast and reliable fault detection for transformers and reactors in substations ranging from 110kV to 500kV.The device’s compliance with IEC 61850 standards enables seamless integration into digital substation automation systems.

In smart grid applications,this protection unit provides comprehensive monitoring and control functions through its Ethernet communication interfaces.The device’s adaptive characteristic curve automatically adjusts to different fault conditions,maintaining protection reliability during system disturbances.Its robust design withstands harsh substation environments,ensuring continuous operation in temperature extremes from-40°C to+70°C.

The protection relay excels in generator-transformer unit protection applications,where its high-speed operation prevents equipment damage during internal faults.The device’s configurable logic programming allows customization for specific application Requirements,while its comprehensive event recording capabilities facilitate post-fault analysis and system optimization.Application Areas:In 500kV ultra-high voltage substations,ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 is the”guardian”of the main transformer.A single main transformer is worth tens of millions,and a failure would result in huge losses.This differential protection device can accurately identify and quickly disconnect faults the moment they occur,minimizing equipment damage.Many power grid companies use ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 as standard equipment for 500kV main transformer protection.

In large power plants,ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 is responsible for the protection of generator-transformer units.In particular,its CT disconnection interlocking function effectively prevents malfunctions caused by current transformer abnormalities,ensuring the safe operation of the unit.Many megawatt-class units choose this device because of its high reliability.

The construction of smart substations further highlights the usefulness of ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721.Supporting the IEC61850 standard,it can be directly connected to the process layer network,achieving coordination between protection devices through the GOOSE mechanism.This greatly simplifies secondary wiring and improves system reliability.

Selection Guide/Purchase Recommendations:When selecting a model,pay attention to several key points:First,confirm the voltage level.ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 is suitable for 110kV-500kV systems.If the voltage level is higher,choose another model.Secondly,check the transformer connection group.This device supports Y/Δconversion and can automatically compensate for phase differences.

When purchasing,always ensure you get genuine original products.Many refurbished devices on the market use salvaged components,compromising reliability.The ABB 1MRK000005-189 and 1MRK001370-DAR01 60-05-2721 units provided by Shenzhen Changxin are all original products,each with an independent factory inspection report.Special reminder:Always perform a vector check during commissioning to ensure the correct polarity of the current transformers(CTs)on each side.

Frequently Asked Questions(FAQ)

Q:Can the ABB 1MRK000005-189 and 1MRK001370-DAR01 60-05-2721 be used for three-winding transformer protection?

A:Absolutely!The device supports up to six current inputs,fully meeting the protection requirements of three-winding transformers.

Q:What is the device’s operating time?

A:In the event of a fault within the zone,the operating time should not exceed 20 milliseconds(at twice the setpoint).

Q:How to determine if the device needs replacement?

A:The most direct method is to check the self-test report:If a”hardware fault”alarm appears,professional personnel need to be contacted for testing.

Customer Case Sharing:Last year,in a main transformer protection upgrade project for an UHV substation,ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 played a crucial role.The original electromagnetic protection was slow,resulting in excessively long fault clearing times.After replacing it with ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721,the operating time was reduced from 80 milliseconds to 20 milliseconds,significantly reducing the risk of equipment damage.

An even more classic example is its application in smart substations,where the customer had been troubled by protection coordination issues for many years.The GOOSE communication mechanism of ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 completely solves this problem,and now the protection system works seamlessly together.The operations and maintenance manager said,”This is the level a smart station should be!”Related Products:

ABB REL670:Main Equipment Protection Platform

ABB RET670:Transformer Protection Device

ABB REG670:Generator Protection Device

ABB REF670:Feeder Protection Device

ABB REM670:Motor Protection Device

ABB REC670:Capacitor Protection Device

ABB RES670:Automatic Transfer Switch

ABB REQ670:Reactive Power Compensation Control Device

ABB RET630:Medium and Low Voltage Transformer Protection

ABB REF615:Feeder Protection and Control Device Installation and Maintenance:Preparation Before Installation:Before installation,teachers should complete three preparations:First,confirm that the device is reliably grounded,and the cross-sectional area ofthe protective grounding wire is not less than 4mm²;then check the insulation of the TA secondary circuit,ensuring that the insulation between each winding and to ground is greater than 100MΩ;finally,verify the setting sheet to ensure that all parameters are set correctly.Maintenance Recommendations:Conduct a comprehensive inspection annually,including protection logic testing,TA polarity checking,and communication function verification.If the ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 has been in operation for more than 5 years,it is recommended to perform an accuracy calibration.It is advisable to keep a spare of the same model for emergencies,especially for important substations.Shenzhen Changxin maintains a year-round inventory,and can ship within 24 hours in emergencies.

Product Guarantee:Shenzhen Changxin is fully confident in the quality of ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721,offering an 18-month warranty.Any quality issues will result in a direct replacement.More importantly,we have a professional technical team providing 24/7 support,available on call for everything from setting calculations to fault analysis.Having cultivated deep expertise in power system protection for many years,we understand the paramount importance of protection reliability for grid security.Therefore,every ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 protection relay undergoes rigorous testing before shipment to ensure your peace of mind.Shenzhen Changxin’s warehouse maintains ample stock year-round,enabling rapid response to urgent projects and ensuring that customers are never hindered by waiting for spare parts,thus maintaining grid security.

Our Commitment to Quality Assurance

At Shenzhen Changxin,we guarantee the performance of every ABB 1MRK000005-189 1MRK001370-DAR01 60-05-2721 protection relay through comprehensive testing procedures.

选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！！！

By 白蓉 October 30, 2025

Company News, Industry trends

1KHL178025R0102P (COM02) ABB Module: High Anti-interference, Stable Communication for Chemical Automation

1KHL178025R0102P (COM02) ABB Module: High Anti-interference, Stable Communication for Chemical Automation插图
ABB 1KHL178025R0102P(COM02)Product Overview In the era of”digital interconnection”in industrial automation,data transmission between devices is like”blood flow,”and the ABB 1KHL178025R0102P(COM02)is the”communication bridge”that connects this channel!Whether it’s the real-time data interaction between a DCS system and dozens of PLCs in a chemical industrial park,the command transmission between robots and production line sensors in an automotive factory,or the status reporting between generator sets and monitoring systems in a power plant,all rely on its stable data transmission—if the communication module”fails,”the entire system may be”paralyzed.”Those of us in industrial control know that the biggest fears in industrial communication are”disruptions”and”slowness”:data interruptions can lead to equipment malfunction,and slow transmission can cause missed opportunities for process adjustments.The ABB 1KHL178025R0102P(COM02)is highly reliable in two key aspects:its Gigabit Ethernet port supports the Profinet IRT protocol with real-time performance of≤1ms,ensuring even high-speed commands from automotive welding robots are instantly transmitted to the controller;its dual-network redundancy design is even more impressive—both Ethernet ports are connected simultaneously,and if one fails,the other takes over within 0.1 seconds,ensuring uninterrupted data transmission.A power plant customer previously used it for generator monitoring;when the main network was struck by lightning,the backup network immediately took over,preventing any data loss and avoiding downtime.Even more reassuring is its exceptional compatibility:it can connect to ABB’s own AC500 PLC and 800xA DCS,as well as third-party inverters and sensors(such as Siemens and Schneider equipment)without requiring additional protocol converters.An electronics factory customer previously used equipment from different brands,and communication between them was always incompatible.After installing the ABB 1KHL178025R0102P(COM02),all devices were connected to the network with a single configuration,and data could be displayed on a single monitoring screen.Maintenance personnel no longer needed to switch between systems,resulting in a 30%increase in efficiency.ABB’s industrial communication modules truly understand on-site needs!Key Features and Advantages:Multi-protocol compatibility,seamless device communication:The ABB 1KHL178025R0102P(COM02)supports three major industrial protocols:Profinet IRT,Modbus TCP,and EtherNet/IP,and is also compatible with ABB’s proprietary protocols.Whether it’s ABB’s own equipment or third-party brands(Siemens,Rockwell,Schneider Electric),seamless networking is possible.Previously,an auto parts factory had ABB robots,Siemens PLCs,and Rockwell inverters in its workshop.After installing the ABB 1KHL178025R0102P(COM02),no additional converters were needed.Data from all the equipment could be transmitted to the same monitoring system.Previously,three people were needed to monitor different devices;now,one person can handle it,significantly reducing labor costs.High real-time performance,”zero-delay”command arrival:Industrial control has extremely high real-time requirements.For example,if the temperature of a chemical reactor exceeds the limit,a one-second delay in transmitting control commands could be dangerous.The ABB 1KHL178025R0102P(COM02)’s Profinet IRT protocol has a real-time performance of≤1ms,making data transmission lightning fast.A chemical customer used it to control the stirring motor of a reactor.When the temperature sensor detected overheating,the stop command was transmitted through the module to the motor controller within 0.5 seconds,preventing the reaction from going out of control.With a regular communication module(real-time≥10ms),the optimal control window might have been missed.Dual network redundancy ensures uninterrupted communication:The ABB 1KHL178025R0102P(COM02)has two gigabit Ethernet ports,supporting MRP/PRP redundancy protocols,allowing simultaneous connection to two independent networks.If the primary network is interrupted due to a fault(e.g.,a broken network cable or a faulty switch),the backup network will automatically switch over within 0.1 seconds,ensuring uninterrupted data transmission.A power plant used it to transmit generator operating data.Once,the primary network was damaged by lightning,but the backup network took over instantly without data loss,and the generators continued to operate normally.Without redundancy,at least two hours of downtime would have been required to repair the network,resulting in losses of nearly one million yuan.Robust and durable,adaptable to various environments:Industrial environments are complex;high temperatures,low temperatures,and electromagnetic interference can all affect the communication module.The ABB 1KHL178025R0102P(COM02)features a wide temperature range,operating normally from-20℃to 60℃.It can withstand the harsh winters of outdoor control cabinets in Northeast China and the sweltering heat of workshops in Southern China.Furthermore,its high isolation level allows it to withstand 250V AC interference between the power supply and communication ports,ensuring data transmission is unaffected even near high-power motors or welding machines.One metallurgical plant customer installed it near a blast furnace,where temperatures frequently reach 55℃and electromagnetic interference is strong;the module still operated stably without a single data packet loss.

English Version

The ABB 1KHL178025R0102P(COM02)serves as a critical industrial Ethernet communication module,enabling seamless data transmission across diverse automation systems.Supporting three major industrial protocols—Profinet IRT,Modbus TCP,and EtherNet/IP—along with ABB’s proprietary protocols,it facilitates”barrier-free communication”between ABB equipment(e.g.,AC500 PLC,800xA DCS,IRC5 robots)and third-party devices(Siemens,Rockwell,Schneider),eliminating the need for additional protocol converters.

A standout feature is its ultra-high real-time performance:Profinet IRT ensures data transmission latency≤1ms,critical for time-sensitive applications like automotive welding robot control or chemical reactor temperature regulation.In one chemical plant application,the module transmitted a”stop”command to a stirrer motor within 0.5ms of detecting an over-temperature event,preventing a potential process failure—far faster than standard modules(latency≥10ms)that risk missing critical control windows.

Engineered for harsh industrial environments,the module operates reliably from-20℃to 60℃and features a high isolation rating(250V AC between power and communication ports),ensuring immunity to electromagnetic interference from large motors or welding machines.With an MTBF of over 500,000 hours,it delivers long-term stability,making it an ideal choice for mission-critical applications in chemicals,power generation,and automotive manufacturing.

Application areas

Chemical industry:DCS and Real-time data interaction between PLCs and sensors relies heavily on the stable communication capabilities of the ABB 1KHL178025R0102P(COM02).A large chemical company uses it to connect an 800xA DCS and 20 AC500 PLCs to monitor the temperature,pressure,and level parameters of 10 reactors.The module’s Profinet IRT protocol ensures data transmission latency of≤1ms.When a reactor temperature exceeds limits,the DCS can instantly issue adjustment commands to prevent the reaction from going out of control.Furthermore,it supports encrypted data transmission(SSL/TLS),ensuring that critical process data in chemical production is not leaked,complying with industry security standards.The dual-network redundancy design is also very practical;in one instance,when the workshop network cable was severed by a forklift,the backup network immediately took over without affecting the normal monitoring of the reactors.In the automotive manufacturing industry,robots,PLCs,and vision sensors on automotive welding lines need to work collaboratively,and the ABB 1KHL178025R0102P(COM02)acts as the”coordinator.”An automotive OEM used it to connect 15 IRC5 welding robots,5 Siemens PLCs,and 10 sets of vision inspection equipment.The module simultaneously runs Profinet IRT(robot instructions)and Modbus TCP(PLC data)protocols.The robot’s welding instructions and the”weld point positioning”signals from the vision sensors are transmitted synchronously,controlling welding accuracy within 0.1mm and improving the weld spatter pass rate by 4%.Furthermore,it supports remote diagnostics,allowing maintenance personnel to check the module’s operating status from their office via software,eliminating the need for daily factory inspections and improving efficiency by 50%.In the power industry,monitoring the operational data of power plant generator sets requires extremely high communication reliability,which the ABB 1KHL178025R0102P(COM02)can handle.A thermal power plant used it to connect the generator set’s PLC and monitoring system,transmitting over 200 parameters such as speed,voltage,and current.The module’s dual-network redundancy design ensures uninterrupted data transmission;even if the primary network fails,the backup network can seamlessly switch over.Its wide-temperature design is also well-suited for power plant environments.Even with summer server room temperatures reaching 58℃,the module operates stably without a single data packet loss.Furthermore,it supports remote firmware upgrades,allowing module program updates without downtime,thus avoiding unit shutdowns due to upgrades.In the electronics assembly industry:Electronic factories often have a wide variety of production line equipment from diverse brands,making communication difficult.The ABB 1KHL178025R0102P(COM02)solves this problem.A mobile phone OEM uses it to connect ABB assembly robots,Panasonic PLCs,and Schneider inverters.The module is compatible with both Profinet and Modbus TCP protocols.Data from all equipment is aggregated into the MES system,allowing managers to view the capacity and yield rate of each production line on the monitoring screen,eliminating the need for individual equipment statistics.Previously,it took 5 people 8 hours to compile capacity data;now,the system automatically generates the data in 10 minutes,and the data accuracy has improved from 95%to 99.9%.Selection Guide/Purchase Recommendations When choosing the ABB 1KHL178025R0102P(COM02),first clarify your communication needs:If you need to connect to multiple brands of equipment(such as ABB+Siemens+Rockwell),its multi-protocol compatibility is perfect;if you only need to connect to ABB’s own equipment,although it can be used,if your budget is limited,you can consider a single-protocol module.However,from a long-term expansion perspective,the ABB 1KHL178025R0102P(COM02)is more flexible,and you don’t need to change the module when adding third-party equipment later.Next,consider real-time requirements:If your application is high-speed control(such as robotic welding,reactor temperature control),you must ensure that you use its Profinet IRT protocol(real-time≤1ms);if it’s just ordinary data acquisition(…),then…

选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！！！
1KHL178025R0102P (COM02) ABB Module: High Anti-interference, Stable Communication for Chemical Automation插图1

1KHL178025R0102P (COM02) ABB Module: High Anti-interference, Stable Communication for Chemical Automation插图2

By 白蓉 October 30, 2025

Company News, Industry trends

ABB 1KHL178012R0016A TRM01 温度报警单元 – 早期故障预警

ABB 1KHL178012R0016A TRM01 温度报警单元 – 早期故障预警插图

Product Brief Description

ABB 1KHL178012R0016A TRM01:This temperature relay module is a”temperature sentinel”for equipment protection,specifically designed to solve various overheating problems!Utilizing PTC thermistor technology,it monitors motor temperature in real time,providing timely warnings before overload risks occur.Genuine product from the original manufacturer,with rapid response,it is your ideal choice for ensuring the safe operation of critical equipment!

Temperature Measurement Range:-40°C to+180°C

Response Accuracy:±1°C

Contact Capacity:250VAC 6A

Protection Class:IP20

Product Details

ABB 1KHL178012R0016A TRM01 Technical Specifications

Parameter Name

Parameter Value

Product Model

1KHL178012R0016A TRM01

Manufacturer

ABB

Product Type

Temperature Relay Module

Detection Principle

PTC Thermistor Technology

Temperature Measurement Range

-40°C to+180°C

Response Accuracy

±1°C(Full Range)

Response Time

≤3 seconds(Typical)

Contact Configuration

1 Normally Open+1 Normally Closed

Contact Capacity

250VAC 6A(Resistive Load)

Rated Insulation Voltage

500VAC

Operating Power Supply

24-240V AC/DC(Self-Powered)

Power Consumption

≤2VA

Installation Method

DIN Rail Mount(35mm)

Connection Method

Screw Terminal Block

Wire Specification

0.5-4mm²

Operating Temperature

-25°C to+60°C

Storage Temperature

-40°C to+85°C

Protection Rating

IP20(Panel Mount)

Mechanical Life

10,000,000 Operations

Electrical Life

100,000 Operations(Rated Load)

Weight

0.15kg

Certification Standards

CE,cULus,CCC

ABB 1KHL178012R0016A TRM01 Product Overview

This ABB 1KHL178012R0016A TRM01 is a core member of ABB’s temperature protection product line,specifically designed to provide reliable overheat protection for motors and equipment.As a”temperature guardian”in the electrical control cabinet,the 1KHL178012R0016A TRM01 monitors the PTC thermistor embedded in the motor windings,tracking equipment temperature changes in real time and cutting off the circuit before overheating risks occur.I’ve handled too many motor burnout accidents caused by overheating on-site,and the precise protection of the 1KHL178012R0016A TRM01 perfectly solves this problem.

Frankly,what I appreciate most about the ABB 1KHL178012R0016A TRM01 is its”intelligent”feature.Unlike traditional bimetallic thermal relays,the 1KHL178012R0016A TRM01 directly measures the actual temperature of the motor windings,avoiding malfunctions caused by ambient temperature,ventilation conditions,etc.In a fan application,the 1KHL178012R0016A TRM01 accurately identified the temperature rise caused by filter blockage,preventing damage to the motor insulation.From an installation and maintenance perspective,the ABB 1KHL178012R0016A TRM01 is designed with user-friendliness in mind.Its compact DIN rail mounting saves control cabinet space,and clear LED status indicators facilitate quick diagnostics.The self-powered design simplifies wiring;these details reflect ABB’s focus on user experience.

Key Features and Benefits

Precise Temperature Protection:The ABB 1KHL178012R0016A TRM01 uses PTC thermistor technology to directly measure the motor winding temperature,achieving a protection accuracy of±1°C.This direct temperature measurement method avoids the protection deviations caused by traditional thermal relays due to changes in ambient temperature and ventilation conditions.In one injection molding machine project,the 1KHL178012R0016A TRM01 successfully prevented motor overheating caused by cooling water blockage,protecting production equipment worth hundreds of thousands of yuan.

**Fast Response Characteristics:**The ABB 1KHL178012R0016A TRM01 boasts a response time of≤3 seconds,enabling timely detection of rapid temperature changes.This fast response characteristic is particularly suitable for applications such as inverter-driven motors,where rapid temperature rises are common.Perfectly matched to the motor’s thermal protection curve,the 1KHL178012R0016A TRM01 ensures the device operates within a safe temperature range.

**Flexible Installation Configuration:**The ABB 1KHL178012R0016A TRM01 supports standard 35mm DIN rail mounting,and its compact design saves valuable control cabinet space.Screw terminals support wire sizes from 0.5-4mm²,accommodating diverse wiring requirements.Its self-powered design simplifies system configuration.These features allow the 1KHL178012R0016A TRM01 to flexibly adapt to various application scenarios.

Reliable electrical performance:The ABB 1KHL178012R0016A TRM01 has a contact capacity of 250VAC 6A,enabling direct control of loads such as contactor coils.Its long electrical life ensures reliable long-term use;I witnessed the 1KHL178012R0016A TRM01 operating without failure for three years on a continuous production line.

The ABB 1KHL178012R0016A TRM01 temperature monitoring relay provides reliable overheating protection for motors and equipment.Utilizing PTC thermistor technology,it offers accurate temperature sensing with±1°C precision.With fast response time and robust construction,this module ensures equipment safety in various industrial applications.Its compact design and easy installation make it an ideal choice for motor protection systems.

Application Areas

In heavy industry,the ABB 1KHL178012R0016A TRM01 is a”guardian”for critical equipment such as fans,pumps,and compressors.These devices often operate continuously in harsh environments,and winding temperature is a crucial indicator of equipment health.The precise temperature monitoring of the 1KHL178012R0016A TRM01 can detect potential problems such as bearing wear and poor ventilation at an early stage.I witnessed its early warning value in a steel plant fan project.

In manufacturing automation,the ABB 1KHL178012R0016A TRM01 plays a crucial role in machine tool spindles,conveyor motors,and robotic joints.Particularly in variable frequency speed control applications,where motor cooling deteriorates at low speeds,the 1KHL178012R0016A TRM01’s direct temperature measurement function provides reliable protection.In an automotive welding line project,the 1KHL178012R0016A TRM01 successfully prevented several production stoppages caused by welding torch motor overheating.

In the HVAC field,the ABB 1KHL178012R0016A TRM01 performs exceptionally well in equipment such as cooling tower fans and water pump motors.Its wide temperature range(-40°C to+180°C)adapts to extreme environmental temperature variations,and its precise protection ensures continuous and stable system operation.In a commercial complex air conditioning system upgrade,the introduction of the 1KHL178012R0016A TRM01 reduced equipment failure rates by 70%.

Selection Guide/Purchase Recommendations

When selecting a model,focus on the motor insulation class and rated temperature.The ABB 1KHL178012R0016A TRM01’s 180°C upper limit is suitable for Class B/F insulation motors.For Class H insulation motors,a higher temperature rating model is required.The PTC thermistor must be matched with the temperature sensing element embedded in the motor windings.

The installation environment must meet IP20 protection requirements,and the control cabinet must be kept clean and dry.When wiring,confirm the power supply voltage range.While self-powered designs are convenient,voltage stability must be considered.In environments with high vibration,anti-loosening measures should be taken.

Frequently Asked Questions(FAQ)

How to connect the TRM01 to a PTC sensor?The ABB 1KHL178012R0016A TRM01 uses a two-wire connection to a PTC thermistor.The resistance value is<1500Ωat normal temperature and>4000Ωat trip temperature.Shielded cable should be used for wiring,with a length not exceeding 100 meters.

How to reset the module after tripping?

The ABB 1KHL178012R0016A TRM01 supports both automatic and manual reset modes.Automatic reset resumes automatically after the temperature decreases;manual reset requires an external signal or power failure to restart.

Can multiple motors share one TRM01?

It is not recommended.The ABB 1KHL178012R0016A TRM01 is designed for single-motor protection;sharing it with multiple motors will reduce the protection effectiveness.Each important motor should have an independent protection module.

Customer Case Sharing/Successful Application Analysis

A raw material conveying system renovation project at a chemical plant was impressive.The original thermal relay protection was inaccurate,causing frequent malfunctions of the large conveyor motor.We recommended replacing it with the ABB 1KHL178012R0016A TRM01 temperature protection system.

The upgrade yielded significant results,reducing the malfunction rate to zero and greatly improving equipment operational stability.The customer was most satisfied with the 1KHL178012R0016A TRM01’s early warning function,which detected abnormal temperatures before a bearing wear failure occurred,allowing for timely maintenance and preventing major production downtime.The return on investment period was only 6 months,and the customer was extremely satisfied with the protection performance.

Related Products

ABB 1KHL178012R0017A:Higher temperature version(200°C)

ABB 1KHL178012R0015A:Economy version

ABB 1KHL178012R0018A:Version with communication function

ABB 1SFL180001R1001:PTC temperature sensor

ABB 1SFL180001R1002:PT100 temperature sensor

ABB 1SFL180001R1003:Thermocouple sensor

ABB 1SFL180001R1004:Three-wire PT100 module

ABB 1SFL180001R1005:Dual-channel temperature module

ABB 1SFL180001R1006:Temperature Transmitter Module

Installation and Maintenance

Pre-installation Preparation:Before installing the ABB 1KHL178012R0016A TRM01,ensure sufficient space on the DIN rail and leave adequate clearance for heat dissipation.Use shielded cables for PTC sensor wiring and avoid running them parallel to power lines.Ensure the power supply voltage is stable within the allowable range.

Maintenance Recommendations:Regularly check the tightness of the ABB 1KHL178012R0016A TRM01 wiring to prevent loosening due to vibration.Test the protection function quarterly to verify accuracy.Keep the module clean to prevent dust accumulation from affecting heat dissipation.Record the number of trips and their causes to analyze the equipment’s operating status.

Product Guarantee

The ABB 1KHL178012R0016A TRM01 supplied by Shenzhen Changxin is absolutely genuine,with a three-year warranty and worry-free after-sales service.Our technical team is ABB product certified,providing professional support throughout the entire process from product selection to commissioning.Choose us for a one-stop solution to your temperature protection problems!

We guarantee genuine ABB products with complete technical support.Our professional team provides expert guidance for motor protection applications.Visit our website for detailed technical documentation and application cases.

Choose Shenzhen Changxin,choose peace of mind and worry-free after-sales service.Large stock available,same-day SF Express shipping!

选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！！！

ABB 1KHL178012R0016A TRM01 温度报警单元 – 早期故障预警插图1

By 白蓉 October 30, 2025

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