• Prok Devices Private Limited

Earth Fault Relay

Prok devices manufactures Earth Fault Relays (EFR) are available in both solid state and microcontroller versions. Microprocessor based relays have both IDMT (IEC- 4 Curves) and definite time trip characteristics makes them very use-full in wide variety of applications. The relays have LCD display for indicating the trip level of the current with respect to secondary of CT. LED indications are also available in both solid state and microprocessor versions. The setting procedure of the relays is very user friendly. EFR has wide auxiliary input voltages. EFR design is tropicalized and rugged. They offer very low burden on CT, so that CT with lower VA can be selected for the application.