Siemens 3RT1026-3A Contactor is a three‑pole SIRIUS power contactor designed for AC‑3 motor switching in compact control panels. In Siemens’ documented variant 3RT1026-3AC20, it provides AC‑3 switching at 25 A and up to 11 kW at 400 V, driven by a 24 V AC control coil (50/60 Hz) and in a size S0 footprint with spring‑type terminals. The unit is paired with the auxiliary contact block 3RH1921‑2HA22, expanding signaling and interlock options in control circuits. This combination supports three‑phase motor control in applications such as conveyors, pumps, and fans, where a reliable, low‑voltage coil and additional signaling contacts are advantageous.
