3TF6933-1DF4 SIEMENS

The 3TF6933-1DF4 Siemens contactor is a robust and high-performance switching device designed for demanding industrial applications. As a Size 14 contactor, it boasts a 3-pole configuration, making it suitable for controlling three-phase electrical circuits. It is specifically optimized for AC-3 duty, enabling efficient and reliable switching of AC induction motors. With a substantial power rating of 450 kW at 400/380 V (or 690 V), this contactor can handle heavy-duty motor control tasks. The integrated auxiliary switch features a 33 configuration (3 normally open + 3 normally closed contacts), providing versatile signaling and interlocking capabilities. This contactor is pre-assembled with a reversing contactor 3TC4417-4A, facilitating easy implementation of motor reversing applications. A series resistor is included for a DC economy circuit operating at 110 V DC, reducing energy consumption during holding. This combination ensures efficient and reliable motor control with added energy savings. The 3TF6933-1DF4 is ideal for applications requiring frequent switching and high operational reliability.