Siemens 3TF2222-0BB4 24V AC Pilot Contactor 3-Phase

Siemens 3TF2222-0BB4 is a 3‑pole Size 00 contactor designed for three‑phase motor control with AC‑3 duty, capable of switching up to 4 kW at 400 V and driven by a 24 V DC coil. The unit uses screw terminals for straightforward wiring and includes an auxiliary contact block 22E with 2 normally open and 2 normally closed contacts for signaling or interlock functions. With a compact 45 mm width and a rated load current around 9 A, it suits space‑constrained motor control panels and automation installations, such as conveyors, pumps, or fans, where reliable Siemens operation is required. The 3TF2222-0BB4 supports three‑pole operation and is part of the Siemens World Series, specifically configured for 24 V DC coil control in industrial control cabinets.