Siemens 3RT1026-1A..0 Contactor is a three‑pole Sirius power contactor designed for AC‑3 duty with a 110–120 V AC coil, making it suitable for North American control circuits. It is rated for 25 A in AC‑3 service and can switch up to 11 kW motors at 400 V across three poles, with operation at 50/60 Hz. The unit is size S0, features screw terminals for secure wiring, and comes in a compact footprint measuring roughly 85 mm in height and 45 mm in width. mounting on 35 mm DIN rails or via standard screw/snap‑on methods provides flexible installation in control panels.
