Prok Devices Private Limited
Prok Devices Private Limited
Rajaji Nagar, Bengaluru, Karnataka
GST No. 29AAACP7896A1Z5
Call 08048764939 81% Response Rate
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Numerical Over Current Relay

We are a leading Manufacturer of numerical over current relay from Bengaluru, India.
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Numerical Over Current Relay
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Numerical Over Current Relay

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Product Details:
Relay TypeOver Current Relay
CurrentOver Current
Being a client-centric organization, we are engaged in manufacturing, supplying, exporting and trading Numerical Over Current Relay. Based Over Current Relay (OCR) with Earth Fault Relay (EFR), these relays are extensively used for selective over current. Apart from this, applicable in substations and industrial networks, these relays are widely used for earth fault protection of radial feeders in impedance earthed power systems.


  • Definite time curve for both Phase & Earth along with optional user defined curve
  • Low AC burden
  • Reliable auxiliary supply of wide range input of 18-85 or 85-275 volts AC or DC
  • Non-Volatile memory for data retention and retrieval in the event of power failure
  • Unique combination of 50/51/50N/51N in a single gadget
  • Consistent repeat accuracy
  • High Drop-off/Pick-up ratio
  • Poly carbonate front cover with external reset switch


Accuracy Of Operating Time: For Idmt,Definite Time
and Instantaneous

±5%, ±3% and Less than 2 Cycles

Relay Rated Current (In)

1A or 5A user selectable


50 Hz or 60 Hz

Auxiliary Voltage Range

85V-275V AC/DC, 21-130V DC





Ac Burden

< 0.4VA for 5A and < 0.2VA for 1A

Dc Burden

< 5W during non operated condition and < 7W during operated condition


151 x181x195 mm (WxHxD



Panel Cut-Out

151 x 157 mm + 0.1mm

Contact Rating

AC: 250 V @ 30 AMP and DC: 24 V @ 30 AMPS, 2 C/O or 3 C/O

Operating Temperature

5 to +55°C

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