Description​​

The ABB​​LENRZ L5311​​is a high-performance DC power supply module designed for the AC 800M programmable controller system.This robust power unit provides stable and reliable DC power to the controller and I/O modules,ensuring uninterrupted operation in demanding industrial automation environments.With its efficient design and comprehensive protection features,it forms the foundation for reliable process control systems.

Input Voltage:120/230V AC

Output Voltage:24V DC

Power Rating:240W

Efficiency:>90%

​​Application Scenarios​​

In a chemical processing plant’s distributed control system,the ABB​​L5311​​power supply modules provide redundant power to multiple AC 800M controller racks.During a voltage sag event,the​​L5311​​maintains stable output,preventing controller resets that could disrupt critical batch processes.The module’s high efficiency reduces heat generation in the control cabinet,contributing to system reliability and lower cooling requirements.

​​Parameter​​

Parameter

Specification

Product Model

​​LENRZ L5311​​

Manufacturer

ABB

Product Category

DC Power Supply

Compatible System

AC 800M Controller

Input Voltage

120/230V AC(85-264V AC)

Input Frequency

47-63Hz

Output Voltage

24V DC

Output Current

10A

Power Rating

240W

Efficiency

>90%

Ripple&Noise

<150mV peak-to-peak

Protection

Overload,Overvoltage,Overtemperature

Operating Temperature

-25°C to+70°C

Storage Temperature

-40°C to+85°C

Cooling Method

Convection

Protection Rating

IP20

Certifications

UL,CE,cULus

​​Technical Principles and Innovative Values​​

The ABB​​L5311​​incorporates advanced switching power supply technology with several innovative features:

Innovation Point 1:Wide input voltage range(85-264V AC)with automatic voltage selection ensures stable operation during power grid fluctuations,making it suitable for global deployment without hardware modifications.

Innovation Point 2:High efficiency(>90%)reduces power consumption and heat generation,enabling higher power density in control cabinets and lowering total cost of ownership through energy savings.

Innovation Point 3:Comprehensive protection circuitry including overload,overvoltage,and overtemperature protection safeguards both the power supply and connected controller components from damage during abnormal conditions.

​​Application Cases and Industry Value​​

Case 1:A pulp and paper mill implemented​​L5311​​power supplies in their distributed control system upgrade.The modules’reliability contributed to 99.95%system availability over three years,with zero power supply-related downtime in critical paper machine control applications.

Case 2:In a water treatment plant,​​L5311​​modules operated continuously in high-humidity environments without performance degradation.The robust design reduced maintenance requirements by 60%compared to previous power supply solutions,significantly lowering lifecycle costs.

​​Related Product Combination Solutions​​

​​ABB AC 800M Controller​​:Main processing unit

​​ABB CI854 Communication Interface​​:Network connectivity

​​ABB S800 I/O Modules​​:Signal acquisition and control

​​ABB Redundancy Module​​:System backup coordination

​​ABB Control Builder​​:Programming and configuration software

​​Installation,Maintenance,and Full-Cycle Support​​

Installation:The​​L5311​​module mounts on standard DIN rails in control cabinets.Ensure adequate clearance for ventilation and follow proper grounding practices.Verify input voltage compatibility before applying power.

Maintenance:Regular inspection of ventilation paths and cleaning of air filters ensures optimal thermal management.Monitor output voltage stability and perform preventive replacement based on recommended service intervals.

Support:Comprehensive technical support includes configuration assistance,troubleshooting guidance,and lifecycle management services.Our team provides expert support for system integration and maintenance optimization.

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