Siemens 3RU2146-4MD0

The thermal overload relay operates within a current range of 80 to 100 A, specifically engineered for motor protection. It conforms to size S3 and is classified under Class 10, ensuring reliable performance when mounted on contactors.

In terms of connectivity, the main circuit utilizes screw terminals while the auxiliary circuit is equipped with spring-type terminals, facilitating effective integration into existing systems. The relay features a manual and automatic reset capability, enhancing its usability in various applications.

This device exhibits an insulation rating of IP20, with a trip type classified as Class 10. It is capable of handling contact ratings of B600 / R300 and is designed to operate effectively within an environmental temperature range of -40 °C to 70 °C. The relay maintains operational integrity even under conditions as low as -55 °C.

Constructed for durability, the product comprises three poles and measures 0.07 m x 0.105 m x 0.125 m, making it suitable for compact installations. The thermal overload relay is a part of the SIRIUS sub-brand, originating from Germany.