Siemens 3TF42-22-0BB4 Contactor is a compact 3-pole AC-3 motor contactor in the SIRIUS 3TF family, size 00, featuring a 24 V DC coil. It switches three-phase motors up to 4 kW at 400 V with screw terminals for secure, vibration-resistant wiring, making it suitable for industrial panels. The device includes a 22E auxiliary contact block that provides two normally open and two normally closed contacts for control logic and status feedback. At 45 mm wide, this 00-size unit delivers reliable, space-efficient performance where compact installations and straightforward wiring are priorities.
