ABB 500PSM03a 1MRB150038R1 high‑reliability power supply module for Symphony / INFI90 DCS system, supports redundant configuration, critical spare part for power plant automation control.

Product Overview

ABB 500PSM03a 1MRB150038R1 is a high‑integrity rack‑mount power supply module for ABB Symphony and INFI90 distributed control systems. It provides multi‑channel isolated DC power for controller boards, I/O modules and back‑plane bus inside the DCS rack. It supports redundant parallel operation and hot‑swap function. Built‑in multiple protection circuits and fault diagnosis, ensures continuous power supply for 24‑7 running critical industrial sites such as thermal power, hydropower and petrochemical industry.

Key Features

• Multi‑channel stable isolated DC output, supply power for rack internal control and I/O hardware
• Support redundant parallel configuration and hot‑swap, realize non‑stop power replacement
• Built‑in over‑voltage, over‑current, short‑circuit and over‑temperature comprehensive protection
• On‑board fault diagnosis and status indication for fast fault checking
• Industrial‑grade rugged hardware, strong anti‑interference for harsh electromagnetic environment

• Standard rack‑mount plug‑in structure, convenient for installation and field maintenance

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Technical Specifications

• Brand: ABB
• Model: 500PSM03a
• Part Number: 1MRB150038R1
• Product Type: DCS Power Supply Module
• Installation: Rack‑mount plug‑in
• Application: Symphony, INFI90 Distributed Control System

• Suitable Industry: Power Generation, Petrochemical, Heavy‑industry Automation

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Compatibility & Application

Compatible with ABB Symphony and INFI90 series DCS racks, used as replacement spare power supply unit. Mainly applied in power plant, chemical plant, oil & gas and other mission‑critical automation control occasions.