ABB REB500BU 1KHL160006R0001H Distributed Busbar Protection

Overview

The ABB REB500BU (1KHL160006R0001H) is a Bay Unit in the REB500 Distributed Busbar Protection System. It provides fast, selective protection for busbars in substations. Therefore, it maintains system stability and isolates faults efficiently. The device acts as a decentralized unit, installed in each bay. It collects and processes current and status signals locally.

Technical Specifications

• Model: REB500BU
• Part Number: 1KHL160006R0001H
• System: REB500 Distributed Busbar Protection
• Function: Bay Unit for current signal acquisition and local processing
• Communication Protocols: IEC 61850-8-1 (GOOSE, MMS), PRP (IEC 62439-3)
• Protection Algorithms: Differential protection, breaker failure, check zone logic
• Input Signals: CT inputs, isolator status, breaker position
• Synchronization: SNTP or PPS time synchronization
• Operating Voltage: 24–250 V DC (depending on configuration)
• Mounting Format: Rack-mounted or panel-mounted
• Environmental Standards: IEC 60255 series compliance
• Cybersecurity Features: User access control, activity logging, centralized account management
• Temperature Range: –25 °C to +55 °C