The Siemens SIRIUS 3RB series is a solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure which has a current rating up to 25 A
It has manual or automatic reset switch functionality
It has a size S0
It can be mounted with contactor mounting
The type of electrical connection for main circuit and for auxiliary circuit is through spring-type terminal
Due to the wide current setting ranges and various tripping characteristics, complete series of motors are covered with just a few types
It has low heat loss which makes it energy-efficient and help to reduce the temperature rise in the control cabinet.Ambient operating temperature is -25 to +60℃ Operating frequency is 50 to 60 Hz Trip class is CLASS 20E
