Siemens 3RT1064-6AF36 Contactor

The Siemens 3RT1064-6AF36 is a 3-pole Sirius power contactor rated for AC-3e/AC-3 duty, capable of switching up to 225 A and delivering up to 110 kW at 400 V (50–60 Hz). It uses a 110–127 V DC coil, enabling reliable DC control with a compact main circuit. The device provides two normally open and two normally closed auxiliary contacts for signaling and interlocking, all wired via screw terminals for robust field connections. Sized in the Size S10 family, it is designed for panel mounting in standard industrial enclosures and integrated control cabinets. Common applications include starting and stopping 3-phase motors in pumps, conveyors, ventilations, and machine-tool lines, where a high-current, compact controller is needed. This model supports motor control loads at 400 V AC with a clear separation between the main power circuit and the auxiliary/control circuit, helping to simplify automation sequences and diagnostics. If you need a reliable 3-pole contactor with an integrated 110–127 V DC coil and built-in signaling contacts, the 3RT1064-6AF36 offers a proven Siemens option for motor control and automation projects.