3RU1146-4MB1 SIEMENS

The 3RU1146-4MB1 is a thermal overload relay designed for comprehensive motor protection within the range of 80 to 100 Amperes. Classified under Size S3 and adhering to Class 10 tripping characteristics, this relay ensures reliable safeguarding against overloads and phase failures. It is suitable for standalone installation, simplifying integration into existing motor control systems. The main circuit connections utilize screw terminals, providing secure and robust electrical connections. Similarly, the auxiliary circuit also employs screw terminals for easy wiring of signaling and control functions. This overload relay offers versatile reset options, supporting manual, automatic, and remote reset functionalities to accommodate diverse operational needs. Please note that the 3RU1146-4MB1 is a phased-out product. The preferred successor is the SIRIUS 3RU2 series, specifically model 3RU2146-4MB1, offering enhanced features and performance. Upgrade to the successor model to benefit from the latest advancements in motor protection technology. It ensures seamless transition and continued reliability.