Siemens 3RT1024-1B Contactor

Siemens Sirius 3RT1024-1B is a compact three‑pole motor contactor with a 24 V DC coil designed for reliable control of three‑phase loads. The main circuit is rated for AC‑3 operation up to 12 A and up to 5.5 kW at 400 V (roughly 7.5 HP at 460 V), making it suitable for starting small to mid‑size motors in conveyors, pumps, and processing equipment. The coil consumes about 5.4 W when energizing and holding at 24 V DC, enabling a low‑control‑power interface. This size S0 contactor measures about 85 mm in height and is designed for mounting on 35 mm DIN rails (DIN EN 50022), with options for screw or snap‑on mounting for TH 35 profiles. Part of the Sirius family, the 3RT1024‑1B delivers robust switching performance for industrial automation environments and can be combined with compatible auxiliary contact blocks in related variants as needed.