NER Steel grid resistors

Salient features

  • Working voltage 12/17.5/24/36/52/72.5kV
  • Protection degree IP00-IP23
  • Natural air cooled


Neutral Earthing resistors are used to limit a fault current when a short circuit arises between phase and neutral. The NER is designed to withstand the nominal current of the system during a given time (often 10 or 30 seconds). The fault current can trip an over current relay and switch off part of the grid. NER’s are offered with and without a current transformer.


forced air cooled power resistor

Contact us:

Maarkaervej 1- 3
2630 Taastrup

+45 3673 2222

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