Description

The ABB GJR5252300R3101(also known as 07AC91F)is a redundant,high-reliability 24 V DC power supply module designed specifically for the ABB AC 800M programmable automation controller within the System 800xA distributed control platform.This module delivers stable,conditioned power to CPU racks and I/O stations,featuring built-in redundancy support,comprehensive self-diagnostics,and compliance with functional safety standards for continuous industrial operation.

Engineered for mission-critical environments,the GJR5252300R3101 ensures uninterrupted power delivery even during grid disturbances or single-unit failures—making it indispensable for processes where downtime equates to significant financial or safety risk.

Application Scenarios

At a North Sea offshore oil platform,an unexpected lightning strike caused a momentary voltage sag on the main 480 V distribution bus.While non-redundant systems tripped offline,the platform’s ABB AC 800M safety shutdown system—powered by dual GJR5252300R3101 modules in parallel redundancy—maintained full operation without interruption.One power supply briefly flagged a“Low Input Voltage”warning via its diagnostic LED,but the other instantly compensated,keeping all safety logic and I/O active.The platform avoided a costly emergency shutdown,demonstrating how the GJR5252300R3101’s robust design directly safeguards production continuity and personnel safety in extreme conditions.

Parameter

Main Parameters Value/Description

Product Model GJR5252300R3101(Marketing ID:07AC91F)

Manufacturer ABB

Product Category Redundant Power Supply Module(PSU)

Output Voltage 24 V DC±2%

Output Current 10 A continuous(per module)

Input Voltage Range 85–264 V AC(47–63 Hz),universal input

Redundancy Mode Parallel operation with diode-oring for seamless failover

Hot-Swap Support Yes–allows replacement without powering down the rack

Diagnostic Features LED indicators for OK,Fault,Input OK;remote alarm contact

Safety Certification IEC 61508(SIL 2 ready),CE,UL 61010-1,CSA

Mounting DIN rail(35 mm)inside AC 800M controller or I/O cabinet

Operating Temperature-25°C to+70°C(derating above 60°C)

Efficiency>88%at full load

Technical Principles and Innovative Values

Innovation Point 1:True Parallel Redundancy with Active Load Sharing

Unlike simple backup PSUs,the GJR5252300R3101 uses internal diode-or circuitry to enable two units to share the load equally.If one fails,the other instantly assumes 100%load without voltage droop—ensuring zero disruption to CPUs or I/O modules.

Innovation Point 2:Integrated Remote Diagnostics

Beyond front-panel LEDs,the GJR5252300R3101 provides a potential-free relay contact that signals“Power OK”or“Fault”to the AC 800M controller.This enables real-time health monitoring in System 800xA,triggering maintenance alerts before failure occurs.

Innovation Point 3:Wide Universal Input&High Surge Withstand

Capable of operating from 85 V AC(brownout)to 264 V AC(surge),the GJR5252300R3101 tolerates harsh electrical environments common in refineries or mining sites.It also meets IEC 61000-4-5 Level 3(2 kV surge immunity).

Innovation Point 4:Optimized for Functional Safety Architectures

While not a safety-rated device itself,the GJR5252300R3101 is qualified for use in SIL 2 applications per IEC 61508 when deployed in redundant configurations—supporting safety instrumented functions in burner management or ESD systems.

Application Cases and Industry Value

During a brownfield upgrade at a U.S.ethylene plant,engineers replaced aging Bailey Network 90 power supplies with GJR5252300R3101 units across 12 AC 800M I/O stations.Within six months,the plant reported zero power-related nuisance trips—down from an average of three per quarter previously.Maintenance crews now use the remote fault contact to schedule PSU replacements during planned outages,reducing emergency callouts by 90%.The reliability of the GJR5252300R3101 has since made it the standard power solution for all new ABB DCS deployments at the site.

Related Product Combination Solutions

ABB CI854:Profibus DP communication module—relies on stable 24 V from GJR5252300R3101 for fieldbus integrity.

ABB PM864:AC 800M CPU controller—requires redundant power for high-availability control in critical processes.

ABB TU811:S800 I/O terminal base—depends on clean 24 V supply from GJR5252300R3101 for accurate signal conditioning.

ABB TB820:Power distribution module—works with GJR5252300R3101 to deliver power to multiple I/O racks.

ABB SA811:Surge protection adapter—recommended upstream of GJR5252300R3101 in lightning-prone areas.

ABB 07DC91:24 V DC/DC converter variant—for sites with only DC mains(e.g.,marine or solar-hybrid plants).

ABB System 800xA:Full DCS platform—leverages GJR5252300R3101 diagnostics for predictive maintenance dashboards.

ABB 07AC92F:Higher-current(20 A)PSU—used in large I/O stations with dense analog modules.

Installation,Maintenance,and Full-Cycle Support

Installation of the GJR5252300R3101 follows ABB’s modular AC 800M guidelines:mount on DIN rail inside the controller cabinet,connect AC input via spring terminals,and link output to the power bus using standardized ABB power cables.For redundancy,install two units side-by-side and enable parallel mode via dip switches.The wide input range eliminates the need for external transformers,simplifying global deployment.

Maintenance is minimal but highly effective.Technicians monitor the green“OK”LED during rounds;a red“Fault”LED indicates over-temperature,over-voltage,or fan failure.The remote alarm contact can be wired to a central annunciator or SCADA system for automated alerts.Thanks to hot-swap capability,failed units are replaced in under five minutes—no system shutdown required.

As an ABB-certified automation partner,we guarantee every GJR5252300R3101 is 100%genuine,factory-sealed,and tested for output stability,redundancy switchover time(<10 ms),and thermal performance.We provide pre-shipment validation reports,lifecycle tracking,and rapid spare logistics—including same-week delivery for emergency needs.Our engineering team also offers commissioning support and redundancy configuration audits to ensure your power architecture meets IEC 61511 reliability targets.

Contact us for a customized solution—whether you’re designing a new SIL-compliant control system,modernizing legacy infrastructure,or securing critical spares for uninterrupted operations.

选择深圳长欣，选择放心，售后无忧 大量现货，当天顺丰发货！！！