Siemens AG 3TF4322-0AN2 Three-Phase Contactor

Siemens AG 3TF4322-0AN2 is a size‑1, three‑pole AC‑3 contactor rated for switching 11 kW motors at 400/380 V. The coil is a 220 VAC, 50/60 Hz type, designed for standard industrial control circuits and easy integration with PLCs and control relays. This model includes two normally open and two normally closed auxiliary contacts (2NO+2NC) to support signaling, interlocking, or control logic alongside the main power contacts. As a true motor‑starter device, it is intended for AC‑3 duty and is commonly used in equipment such as pumps, conveyors, and fans where reliable, compact motor switching is required. The 3TF4322‑0AN2 belongs to Siemens’ 3TF4 family of motor starters and is chosen when a compact, dependable contactor with integrated auxiliary contacts is needed in space‑constrained control panels.