Siemens 3TF4822-0AK6 Three-Phase AC Contactor

Siemens 3TF4822-0AK6 is a three-pole World Series AC contactor designed for robust motor control in industrial environments. It switches three-phase loads with main contacts rated for up to 600 VAC and a continuous current rating of 75 A, corresponding to roughly 75 HP at around 575 V for suitably sized motors. The unit is equipped with a 110/120 VAC control coil, enabling convenient line-voltage control, and includes two normally open and two normally closed auxiliary contacts for control logic and interlocking. This 3-pole model is intended for standalone motor-start applications and commonly used with appropriate overload protection in circuits such as pumps, fans, conveyors, and compressors. Its World Series lineage is built for reliability in demanding service, offering compact, high-current switching in Siemens’ product family.