ABB 1SVR430774R1300 Three-Phase Monitoring Relay

ABB 1SVR430774R1300 CM-PAS three-phase monitoring relay monitors phase sequence, phase loss, and phase unbalance on three‑phase mains and signals faults to protection circuits. It operates from a three‑phase measuring supply of 3 x 160–300 V AC at 50/60 Hz (the R1300 variant; ABB also offers an R3300 version for 3 x 300–500 V AC). Common applications include motor protection and other industrial equipment where reliable detection of abnormal three‑phase conditions is critical. As part of ABB’s CM‑PAS family, this relay is designed for integration in control panels to provide dependable phase monitoring and signaling for enhanced equipment safety and uptime.