ABB 1SVR730750R0400 Industrial Safety Relay Module

ABB 1SVR730750R0400 is the CM-EFS.2S voltage monitoring relay, a two-changeover-contact device designed to supervise voltage in safety circuits and trip or switch outputs if the monitored voltage leaves the preset window. The unit is powered from a 24-240 VAC/DC supply and monitors the B-C voltage range from 3 to 600 VRMS, delivering a voltage window monitoring function that asserts or deasserts its two changeover contacts when the input voltage crosses defined limits. As part of ABB's CM-EFS family, this relay supports industrial automation, motor control, and power distribution applications where voltage supervision is essential.