3RB3143-4XX1 SIEMENS

The 3RB3143-4XX1 from Siemens is an electronic overload relay designed for comprehensive motor protection within a 32 to 115 Ampere range. This particular model is a size S3 relay, engineered to safeguard motors against overload conditions, extending their operational lifespan and minimizing downtime. It offers adjustable tripping classes from 5E to 30E, allowing users to fine-tune the protection characteristics to match specific motor and application requirements. The relay is designed for stand-alone installation, simplifying the integration process into existing motor control systems. Its main circuit utilizes a straight-through transformer for current sensing, ensuring accurate and reliable overload detection. The auxiliary circuit employs spring-type terminals, facilitating quick and secure wiring connections. Users can select between manual or automatic reset options, providing flexibility in responding to tripped conditions. This overload relay provides reliable and precise motor protection, enhancing the overall efficiency and reliability of industrial processes. It is suitable for a wide range of motor applications.