REF601 ABB Protection Relay

Specifications:

1. Rated voltage: Up to 76.5 kV
2. Rated current: Up to 4000 A
3. Protection functions: Overcurrent, differential, distance, earth fault, and breaker failure protection
4. Communication protocols: IEC 61850, DNP3, and Modbus
5. Dimensions: 176 mm x 89 mm x 32 mm
6. Weight: 0.5 kg
7. Operating temperature: -20 to 60 degrees Celsius
8. Storage temperature: -40 to 85 degrees Celsius
9. Humidity: 5 to 95% RH, non-condensing
10. Vibration: 5 g peak, 10 to 500 Hz
11. Shock: 30 g peak, 11 ms
12. EMC: EN 61000-6-2 (immunity), EN 61000-6-4 (emission)