Product Core Brief
- Model: ABB REM615
- Brand: ABB
- Series: REL615 / REL600
- Core Function: Medium-voltage motor feeder and protection relay
- Product Type: Numerical protection relay (IED)
- Key Specs: 1 A / 5 A CT input | 110–250 V AC/DC auxiliary supply | IEC 60870-5-103 / Modbus RTU communication
- Condition: New Original (New Surplus)
Product Introduction
ABB REM615 is a numerical protection relay in the REL615 family, designed for medium-voltage motor feeders. It provides multi-stage protection including overcurrent, earth-fault, thermal overload, locked rotor, and phase unbalance. The relay also integrates interlocking, breaker failure supervision, and auto-reclose logic for complex motor circuits.
The relay communicates via IEC 60870-5-103 and optional Modbus RTU for SCADA integration. New Surplus units are tested through rigorous QC: serial number traceability, insulation resistance (>10 MΩ at 500 V Megger), full functional I/O testing, and firmware verification, ensuring safe and reliable operation in industrial and utility environments.
Frequently Asked Questions
Q: Can REM615 be hot-swapped?
A: No. CT secondaries and auxiliary supply must be de-energized. Hot-swapping can generate dangerous voltage and destroy the relay.
Q: Is REM615 still supported?
A: REL615 is actively used in installed bases. ABB provides firmware updates and spare parts for legacy motor protection relays.
Q: Will configuration be lost during replacement?
A: Yes. Export all settings via PCM500/PCM600 or record manually. Document DIP switch positions and wiring.
Q: Are these units factory-new or refurbished?
A: New Surplus. Units are fully tested: serial traceability, insulation resistance measurement, full functional I/O testing, and anti-static packaging.
