SEL-751A Feeder Protection Relay

SEL-751A 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, and other protocols. Power Supply 110250 Vdc, 110240 Vac, 50/60 Hz (SELect PSIO / 2 DI / 3 DO); 110 Vdc/Vac Digital Input Processor Board (SELect CPU/COM); Slot B Options Include EIA-232 Front, IRIG-B, Fiber Optic Serial Multimode ST, SEL ASCII, Compressed ASCII, Fast Meter, Fast Operate, Fast Message, Mirrored Bits, and Modbus RTU