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EFR2 Earth Fault Relays

Introduction:
It is a 1 Phase Earth Fault Relay. It is best suitable for monitoring Earth Fault Current conditions for Motor / Pump loads. It is used in single phase system supply, where Under / Over Current monitoring or protection is required. It can be Rail mounted & have individually settable under / over current settings, thus increasing their utility as entire System Protection Relays. Added facility of adjustable Trip Time Delay and Power-ON Delay has also be provided, alongwith separate indications.
Features:
· Monitors Earth Fault currents.
· Instant Trip.
· Adjustable Over Current settings (0.1 – 2A)
· 1 CO output rated 5A / 230V AC (Resistive).
· LED indications for Power ON & Fault.
· Manual Reset.
· Sleek DIN Rail mounted housing.
Application Areas:
General panels Motor starter panels HT motor starter panels Power distribution panels 3 phase UPS panels Centrifugal machine control panels
Technical Specifications:
Sr.
Parameter
Specifications
1 Supply Voltage System 110 / 240 / 380 / 415 V AC ±20%; Auxiliary 12 V DC / 24 / 30 V DC ±10%
2 Ext. Input 5 A CBCT or 3 x 5A CT
3 Output contact 1 CO (Normal fail safe logic)
4 Trip setting Under Current N.A.; Over Current 0.1 - 2 Amp (adjustable); Under Frequency —; Over Frequency —; Under Power —; Over Power —; Cos-Ø —; Reverse Power —
5 Input Current Range
6 Power On Delay N.A.
7 Trip Time Delay Instantaneous
8 Resetting Manual
9 Weight 400gms.
10 Dimensions (mm) Overall (L x W x D) 76 x 56.5 x 11.7; Mounting (L x W) 67 x 46

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