REF620 DIS0010 ABB Feeder Protection & Control Unit
Description
REF620 DIS0010 ABB Feeder Protection & Control Unit is a dedicated feeder protection, control, measurement, and monitoring device from the ABB Relion 620 series, designed for public and industrial power distribution systems including radial, loop, and mesh networks.
| Specification | Value |
|---|---|
| Phase Current Input Rating | Programmable 5 A or 1 A CT secondary rating |
| Ground CT Input Rating | Programmable 5/1 A nominal rating (optional) |
| SEF/HIZ CT Input Rating | Fixed 0.2 A nominal rating (optional) |
| Binary Input On Threshold | Programmable 18 to 176 V DC |
| Supported Communication Protocols | DNP3.0 Level 2+, Modbus, IEC 61850 |
Key Features:
- Comprehensive protection including non-directional phase/ground overcurrent, phase step distance, thermal overload, sensitive ground fault (SEF), high impedance fault (HIZ), and voltage protection
- Local and remote breaker control with select-before-operate (SBO) or direct trip options via supported protocols
- Optional arc flash detection (AFD) with 3 optical channels for switchgear fault protection
- Drawer-style design, large readable LCD screen, and 6 configurable setting groups
- High-speed output response of less than 1 millisecond
Applications:
- Protection and control of overhead and cable feeders in public and industrial distribution networks
- Neutral ungrounded, resistance grounded, or impedance grounded power systems
- Industrial facilities such as steel, chemical, and paper manufacturing plants
- Renewable energy integration for solar and wind farm collection lines
Related Models:
- REF620E-1G
- REM620
- REM615