SEL-751A51ACA74850100 Schweitzer SEL-751A Feeder Protection Relay

Schweitzer Engineering Laboratories (SEL) 751A Feeder Protection Relay. This industry-standard unit provides comprehensive protection, monitoring, and control for industrial and utility feeders. It is specifically designed for high-speed arc-flash detection and advanced overcurrent protection. Power Supply: 110-250 Vdc or 110-240 Vac (50/60 Hz) Protection Features: Arc-Flash Detection, Overcurrent (Phase, Ground, Negative Sequence), and Under/Over Voltage. Communication: Standard EIA-232 serial ports (front/rear). Environment: Ruggedized for temperatures between -40° and +85°C. Certifications: UL Listed, CSA Certified, CE Mark.