Siemens 3RT1015-1AF01 Three-Phase Industrial Contactor

Siemens 3RT1015-1AF01 Sirius power contactor is a 3‑pole unit with a 110 V AC coil designed to switch three‑phase loads reliably. It features three normally open main contacts for the primary circuit and an auxiliary NO contact (AF01) for control signaling. Rated for AC‑3 operation at 400 V, it handles 7 A on the main circuit and supports up to 3 kW motors at 400 V. The device is size S00, with screw terminals and an IP20 enclosure, making it suitable for indoor control panels and compact installations. Its operating temperature range spans from −25 to +60 C, and it is approved for use up to 2,000 m above sea level. Designed for long life, the contactor offers up to 30,000,000 mechanical cycles, reflecting Siemens’ emphasis on durability in industrial motor control, pumps, fans, and other three‑phase applications where a compact, separately controlled auxiliary contact is advantageous.