Siemens Overload relay 1 pc 3RB2153-4FF2 (3RB21534FF2)

Overload relay 50...200 A for motor protection size S6, CLASS 5...30E contact mounting/single installation. Main circuit: rail connection. Auxiliary circuit: spring clamp. Manual-automatic reset, internal ground fault detection. The electronic overload relay SIRIUS 3RB2 provides current-dependent protection for consumers with normal and heavy starting against unacceptable overheating due to overload, phase asymmetry, or phase failure. With large current setting ranges and different tripping characteristics, a whole series of motors can be covered with just a few types. With their low power loss, they are particularly energy-efficient and contribute to reduced heating in the control cabinet. Worldwide approvals (e.g., IEC and UL/CSA) and applications in explosion-hazardous environments (ATEX) are standard. The version 3RB21 offers extended functionalities such as an integrated electrical remote reset, ground fault detection, and more. Available with various setting ranges for the overload relay and different tripping classes. They come with screw or spring clamp connections for quick, maintenance-free, and vibration-resistant connections, as well as for single installation. The accessories are compatible across all sizes from S6 to S12. Simple, efficient, always up-to-date - the SIRIUS system modular concept.