Schweitzer Engineering Laboratories 751202BCB3B7785BD81 Feeder Protection Relay

Schweitzer Engineering Laboratories' SEL-751 Feeder Protection Relay is a digital protection relay designed to guard radial and looped distribution feeders in utility and industrial power systems. It provides comprehensive protection for feeders, fault locating, and event analysis, and includes arc-flash mitigation features to reduce exposure during faults. The relay offers flexible protection and control through programmable protective elements and supports Form A, Form B, and Form C outputs. For communications, it supports serial and Ethernet interfaces and standards including IEC 61850 Edition 2, IEC 60870-5-103, EtherNet/IP, Modbus, and DNP3, with synchronization via synchroWAVe. It carries hazardous-environment certifications, including ATEX and UL Class I, Division 2 approvals. The SEL-751 integrates with SEL Protection Suite, enabling seamless coordination within protection schemes and providing reliable protection, fault locating, event recording, and remote monitoring for feeders in both radial and looped configurations.