ABB 500PSM03 1MRB150038R0001 Redundant Power Supply Module

Product Brief Description

The ABB 500PSM03 (part number 1MRB150038R0001) is a rack-mounted high-reliability redundant power supply module designed for ABB Symphony Plus / INFI90 distributed control system racks. It converts wide-range AC input into multiple isolated DC output rails to feed controller, communication and I/O modules. This unit supports N+1 redundant parallel operation with active current sharing, built-in comprehensive circuit protection and diagnostic LED indicators. Optimized for continuous 24/7 operation, it is a critical spare component for power generation and heavy process control DCS cabinets.

Product Functions

• Accepts 100–240V AC universal input and provides multi-channel stabilized DC outputs (+5V, +15V, -15V) for DCS rack internal modules
• Supports parallel redundant N+1 configuration with active load sharing to maintain power if one module fails
• Integrated overvoltage, overcurrent, short-circuit and overtemperature protection to safeguard downstream control hardware
• Real-time module health monitoring with status LEDs for power OK, fault and alarm indication for quick maintenance
• Hot-swap capable design for replacement without shutting down the whole DCS rack under redundant configuration
• Rack backplane interface for power distribution, featuring robust anti-vibration construction and EMC noise suppression for industrial environments

Application Scenarios

• Power plant boiler and turbine control cabinets using ABB Symphony Plus / INFI90 DCS systems
• Oil & gas, petrochemical and pulp & paper continuous process control systems
• Large industrial captive power station and utility substation DCS control racks
• Waste-to-energy plant and district heating central control room automation equipment
• Retrofit and spare replacement projects for legacy ABB INFI90 DCS power racks

Frequently Asked Questions