Over-voltage protection relay / under-voltage / over-current / frequency
Schweitzer Engineering Laboratories
over-voltage, under-voltage, over-current, frequency
digital, programmable, configurable
Feeder Protection Relay
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.
The SEL-751A 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 communications, DeviceNet, and other protocols.