The Siemens SIRIUS 3RA6 series is a compact load feeder DOL starter which has 3 poles and operating frequency of 50 to 60 Hz. The type of electrical connection for main current circuit is spring loaded terminals and connection for auxiliary circuit is through plug in without terminal. The devices combine the functions of circuit breaker, contactor and electronic overload relay and offer extremely high operational reliability. Due to compact design it saves space in the control cabinet and because of removable terminals replacement is easily possible. It is available as direct-on-line or reversing starters and with various setting ranges. It is designed for AC or DC operation.

Ambient temperature is -20 to +60 °C
Mounting type is screw and Snap-On mounting
Design of short-circuit protection is Electromagnetic