ABB 500CPU05 1MRB150081R1E is core CPU processing unit for REB500 busbar protection system, executes protection logic calculation and data processing, widely used for power substation relay protection spare replacement parts.

Product Overview

ABB 500CPU05 with part number 1MRB150081R1E serves as the core central processing unit of ABB REB500 busbar protection system. It undertakes protection logic operation, fault judgment, event recording, data processing and system management tasks. It works cooperatively with BIO input‑output modules and CIM communication modules to realize complete busbar protection function. The circuit board adopts conformal coating treatment, which can resist humidity, dust and strong electromagnetic interference in substation environment. Rack plug‑in structure, it is the core spare hardware for high‑voltage busbar protection equipment in power industry.

Key Features

• Core processing unit for REB500 busbar protection, complete protection algorithm calculation and fault judgment
• Real‑time processing of sampling signals, realize busbar differential protection and related protection functions
• Support fault event recording, alarm log storage and protection setting parameter management
• Built‑in comprehensive self‑monitoring function, detect internal hardware fault and give alarm prompt
• Rack plug‑in hot‑swap capable design, convenient for on‑site maintenance and spare‑part replacement
• Conformal coated circuit board, adapt to harsh electromagnetic environment of high‑voltage substation

• Meet IEC 60255 relay protection standard, support long‑term stable continuous operation

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Technical Specifications

• Manufacturer: ABB
• Model: 500CPU05
• Part No: 1MRB150081R1E
• Application Object: REB500 busbar protection system
• Installation: Rack plug‑in
• Power Supply: Powered by system backplane
• Operating Temperature: ‑10℃ ~ +55℃
• Protection Class: IP20 (cabinet installation)
• Certification: IEC 60255, CE

• Main Function: Protection logic calculation, fault judgement, event recording

Compatibility & Application

Compatible with ABB REB500 series chassis, match with 500BIO01, 500CIM05 and other functional modules. Mainly used in power plant, high‑voltage substation and power transmission projects, used as core spare‑part replacement for busbar relay protection devices.