The 3RB2153-4FW2 is a solid-state overload relay designed for motor protection. It features a current adjustment range from 50A to 200A, suitable for use with size S6 motors and supporting CLASS 5-30E protection classes. The relay is mounted directly onto contactors or installed as a stand-alone device in the main circuit, providing inverse-time delayed protection against excessive temperature rises during normal and heavy starting conditions. It operates with a supply voltage of approximately 1 kV and includes screw termination for secure connections.

Siemens is a global leader in industrial automation, digitalisation, and electrification, offering products such as PLCs, drives, industrial robots, and process control systems. Known for innovation and sustainability, Siemens’ technologies enhance efficiency, safety, and performance across industries like manufacturing, energy, and healthcare.

***CJS Automation is NOT an authorised distributor of Siemens***