3RB2133-4UB0 SIEMENS

The 3RB2133-4UB0 is a Siemens overload relay designed to provide comprehensive motor protection within a range of 12.5 to 50 Amperes. This particular model is a Size S2 relay, making it suitable for medium-sized motor applications. It offers adjustable tripping classes from 5 to 30, allowing users to customize the relay's response time based on the specific motor and application requirements. Mounting is simplified through direct contactor mounting, saving space and reducing installation time. The main circuit connections utilize screw terminals for secure and reliable power connections, while the auxiliary circuit also employs screw terminals for control and signaling purposes. Users can select between manual or automatic reset modes, providing flexibility in responding to overload events. Furthermore, it features integrated ground fault detection, enhancing safety and preventing potential damage from ground faults. This overload relay is a robust solution for safeguarding motors against overloads, phase imbalances, and ground faults, ensuring operational reliability and minimizing downtime. Its versatile settings and comprehensive protection features make it suitable for a wide range of industrial applications.