3RB3123-4SE0 SIEMENS

The 3RB3123-4SE0 is a Siemens overload relay designed to provide comprehensive motor protection. This particular model covers a current range of 3 to 12A, making it suitable for motors within that power range. It conforms to size S0, a standardized dimension for motor control devices, facilitating easy integration into existing systems. The relay offers adjustable tripping classes from 5 to 30, allowing users to fine-tune the protection characteristics to match the specific motor and application requirements. Mounting is simplified through direct contactor mounting, saving space and reducing installation time. The main circuit utilizes spring-type terminals for secure and vibration-resistant connections, while the auxiliary circuit also employs spring-type terminals for reliable signal transmission. Users can select between manual, automatic, or remote reset options for operational flexibility. Furthermore, this overload relay incorporates internal ground fault detection, enhancing safety and preventing damage from ground faults. This advanced feature provides an additional layer of protection, minimizing downtime and ensuring reliable motor operation.