Arc flash protection relay / over-current / over-voltage / under-voltage
SEL-751A Schweitzer Engineering Laboratories


  • Measured/monitored value:

    arc flash, over-current, over-voltage, under-voltage

  • Other characteristics:

    programmable, configurable, panel-mount, digital


The SEL-751A Feeder Protection Relay is the right solution for industrial and utility feeder protection, with flexible I/O options, easy mounting, and fast settings.

Provides complete feeder protection, with overcurrent, overvoltage, undervoltage, and frequency elements. Easily upgrade protection without cutting or drilling existing cutouts with a small form factor and multiple mounting adapters. Quickly integrate into serial- or Ethernet-based communications with IEC 61850, Mirrored Bits®, DeviceNet™, and other protocols.


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