Product Core Brief
- Model: REF645
- Brand: ABB
- Series: Relion® 645 Series
- Core Function: Generator and feeder protection with control logic
- Type: Feeder/Generator Protection Relay (IED)
- Key Specs: IEC 61850 Edition 2, multi-function protection, PCM600 configurable
- Condition: New Original (New Surplus), not refurbished
Product Introduction
ABB REF645 is a multifunction feeder and generator protection relay for medium-voltage industrial and utility applications. The relay combines generator and feeder protection, bay control, and disturbance recording in a modular withdrawable form factor. It belongs to ABB’s Relion 645 platform and supports IEC 61850 Edition 2 communication for substation automation.
In field retrofits, REF645 is often deployed to replace older generator relays or fixed-function feeder devices. The unit allows rapid configuration using ABB PCM600 and supports networked communication via GOOSE messaging. Engineers should confirm firmware version, communication package, and technical key before installation to prevent commissioning delays.
