ABB 1SVR450091R0000 Protection Relay, 220-240VAC, Current Li

The ABB 1SVR450091R0000 is a solid-state overload protection relay rated for 220-240VAC supply. It sits in the Relays category under Solid State Overload Relays, serving as a thermal-motor-protection device that monitors motor current and trips on sustained overload. The 220-240VAC control supply means it is intended for standard single-phase or line-to-neutral control circuits in panels where the relay coil or electronics are fed from a 230VAC auxiliary transformer. The solid-state overload function replaces traditional bimetallic strips with a current-sensing circuit, offering better repeatability and no ambient-temperature tracking error.