Siemens 3RT1015-1KB42 is a three‑pole Sirius power contactor in frame size S00, designed to switch three‑phase motor loads in AC‑3 service up to 400 V. The coil is DC 30 V nominal, compatible with standard PLC outputs. The main circuit provides three normally open contacts (NO) and no normally closed contacts. It is rated for 7 A at 400 V AC‑3, with an approximate motor rating around 3 kW at 400 V. Additional data include a -25 to +60 °C ambient operating range, roughly 30 million mechanical operating cycles, and a three‑pole configuration in frame size S00 with screw terminals.
