The ABB 1SVR730884R4300 is a multifunctional relay from the CM series, designed for phase and voltage loss protection. It operates at 300-500 VAC with a frequency range of 50/60/400 Hz. The relay features 2 changeover (SPDT) outputs rated at 250 V / 4 AMP, and includes adjustable ON/OFF tripping delay functionality. Suitable for 3-phase systems, model designation CM-MPS.43S.