Siemens 3TF44 Contactor is a NEMA/EEMAC Size 1 motor starter (BIN-1.5.1) used to switch electrical loads in industrial control panels. It is rated for a maximum insulation voltage Ui of 690 V and a rated operating current Ie/AC-1 (55 °C) of 55 A, making it suitable for mid-range motor control applications. As part of the Siemens 3TF AC contactor family, it provides reliable control for motors and other AC loads in automation systems.
