Description
Key Technical Specifications
- Model: REB500-BU03-V7-C2-A45-P1-F1-BB1-IO0-R0-OC0-BFP1-EFP0-PD0-DR2-L1-T0
- Brand: ABB
- Product type: Bay unit
- Series: REB500 distributed busbar protection
- Function: Interfaces primary system signals to protection electronics
- Layout: Suitable for distributed and centralized REB500 schemes
- Communication path: Fiber-optic link between bay and central unit
- Main CT inputs: Verify exact rating and terminal arrangement in OEM datasheet
- Rated current class: Verify in OEM datasheet
- Auxiliary supply: Verify in OEM datasheet
- Version / hardware code: V7 / C2
- Configuration code: A45-P1-F1-BB1-IO0-R0-OC0-BFP1-EFP0-PD0-DR2-L1-T0
- Application note: Match to existing REB500 scheme and bay assignment
Product Introduction
ABB REB500-BU03-V7-C2-A45-P1-F1-BB1-IO0-R0-OC0-BFP1-EFP0-PD0-DR2-L1-T0 is a bay unit for the REB500 distributed busbar protection system. It sits at the interface between the primary plant and the protection logic, so the panel fit and configuration code matter as much as the relay family name.
The unit is part of a modular scheme used in MV, HV, and EHV substations, with fiber-optic communication between bay and central units. The long configuration string usually maps hardware, options, and function blocks, so verify the exact string against the OEM manual and the existing bay drawing before you order or install it.

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