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Home > Grid Automation > Protection Relays > Legacy Single Function > CHC Instantaneous Overcurrent Relay
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CHC Instantaneous Overcurrent - Legacy
CHC Instantaneous Overcurrent Relay

Manufacturing for CHC has been discontinued.  As an alternative, please refer to P153, P14N or 350.

The CHC relays are cup-type, high speed, sensitive, overcurrent fault detector relays. These relays may be set to pick up below full load current and operate continuously in the picked-up position. The cup unit circuits are designed to prevent contact welding.

Protection and Control
  • 3 phase and ground instantaneous O/C