ELR-3E

Article: 00086587

Electromechanical relay / differential / earth-leakage / protection

Contrel presents ELR-3E earth-leakage differential relay. It provides a broad range of settings. It also provides precise selection of tripping current, using dipswitches, to maintain contact voltage values under 50V as demanded by the CEI 64-8 standard. It also serves as a proper selectivity option whenever there is a need for protecting other ELRs or/and RCDs downstream or upstream in the line.

The permanent control provided by Toroidal - ELR circuit is a unique feature of the present relays. When the circuit is interrupted, immediate trip of the protection is executed. Thus any deviations can be identified with the Test push button, without having to wait for periodic checks.

The ELR-3E has filters connected at the input circuits. The device, and pulse currents with dc components, are highly resistant to outside disturbances. This is in accordance with specifications of VDE 0664 and project IEC 23 standards. The relay has a manual reset option.

Specifications

  • Type: electromechanical, differential
  • Function: earth-leakage, protection
  • Form: DIN rail
  • Other characteristics: IEC, CEI

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