Digital Energy Protection & Control Voltage and Frequency Relays HFC Instantaneous Overcurrent Relay
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HFC Instantaneous Overcurrent Relay

HFC Instantaneous Overcurrent Relay

The Type HFC relays consist of one or more hinged armature instantaneous overcurrent units. Each unit has two electrically separate contacts and is assembled in a single end drawout type C1 case. The units have a high-seismic rating, and include a target which is latched and raised into view when the unit operates. The targets are manually reset by a button on the front of the relay cover.

End of life notice: The HFC has been discontinued as of October 1, 2013. Read full notice.

Protection and Control
  • Instantaneous overcurrent
  • Detection of severe close-in faults on transmission lines
  • Differential motor protection
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