3RB3123-4PE0 SIEMENS

The 3RB3123-4PE0 is a Siemens overload relay designed to provide comprehensive motor protection. This particular model offers an adjustable current range from 1 to 4 Amperes, making it suitable for motors with varying power requirements. It belongs to size S0, a standardized frame size for motor protection devices. The relay features adjustable tripping classes from 5 to 30, allowing users to fine-tune the response time based on the motor's thermal characteristics and application demands. 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 ease of wiring. It offers a manual-automatic-reset function, providing flexibility in handling overload events. Furthermore, the 3RB3123-4PE0 incorporates internal ground fault detection, enhancing safety and preventing potential damage from ground faults. This overload relay is a reliable solution for safeguarding motors against overloads, phase failures, and ground faults, ensuring operational continuity and minimizing downtime.