3RB3123-4NE0 SIEMENS

The 3RB3123-4NE0 is an overload relay designed by Siemens for comprehensive motor protection. It offers adjustable current settings from 0.32 to 1.25 A, catering to a range of motor sizes. This relay is a size S0 device, suitable for direct mounting onto contactors, simplifying installation and saving space. It complies with Class 5 to 30 tripping characteristics, providing flexibility in adapting to various motor starting and load conditions. The relay features spring-type terminals for both the main and auxiliary circuits, ensuring secure and vibration-resistant connections. It supports manual, automatic, and remote reset options, enhancing operational convenience and adaptability. Furthermore, it incorporates internal ground fault detection, adding an extra layer of protection against insulation failures. This overload relay is an essential component for safeguarding motors against overloads, phase imbalances, and ground faults, extending their lifespan and minimizing downtime. Its robust design and comprehensive features make it a reliable choice for motor protection applications.