3RB2153-4FF2 OVERLOAD RELAY 50…200 A

Overload relay 50…200 A for motor protection Size S6, CLASS 5…30E Contactor mounting/stand-alone installation Main circuit: busbar connection Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset Internal ground fault detection solid-state overload relay SIRIUS 3RB2 for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure.Due to the wide current setting ranges and various tripping characteristics, complete series of motors are covered with just a few types. With their low heat loss, they are particularly energy-efficient and help to minimize temperature rises.Can be supplied with different setting ranges of the overload release and with different trip classes. They are available with screw or spring-loaded terminals for fast, maintenance-free and vibration-proof connection, as well as for stand-alone installation.The accessories consistently fit all sizes from S6 to S12.Simple, efficient and always up to date – SIRIUS modular system.