Siemens 3RT1024-1A Coil Motor Starter Contactor

Siemens Sirius 3RT1024-1A is a three-pole motor starter contactor with a 120 V AC control coil, designed for IEC-based control of three‑phase motors. It carries an AC-3 main current rating of 12 A and an AC-1 rating of 40 A, enabling reliable switching of small to mid-size motors in control panels and automation circuits. The unit is rated for 3 HP at 230 V and 7.5 HP at 460 V, reflecting its suitability across common three‑phase voltages in industrial applications. As part of the Sirius 3RT family, the 3RT1024-1A provides a standard coil-to-main contact arrangement that integrates with other Sirius components and accessories for tailored motor control and protection in panel installations. With its three-pole configuration, it switches all three phases together, helping maintain balanced operation when starting loads. This model is widely used in control enclosures and automation circuits where a compact, proven motor switching solution is required for 3-phase motors up to the indicated ratings.