Siemens Sirius 3RT2017-2FB42 is a three-pole power contactor (AC-3e/AC-3) rated for 12 A and up to 5.5 kW at 400 V, designed to switch three-phase loads in control panels. It uses a 24 V DC coil with an integrated suppression diode and provides one normally closed auxiliary contact along with spring-loaded terminals, all in the compact S00 frame size. With its 3-pole main contacts and S00 form factor, it is suitable for motor control and other three-phase switching tasks in Sirius-based control panels.
