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Contactor size 14, 3-pole, AC-3, 450 kW, 400/380 V (690 V) (4 NO + 4 N

  1. SIEMENS 3TF6944-0CP7 4159878
Contactor, Size 14, 3-pole, AC-3, 450 kW, 400/380 V (690 V) Auxiliary switch 44 (4NO+4NC) AC operation 230...276 V AC 50/60 Hz Vacuum contactor 3TF6 for switching motors.The 3TF6 vacuum contactors offer convincing high performance from a compact design with high contact reliability. They are also characterized by their particularly long switching endurance. They are therefore particularly well suited to frequent switching in inching operation. Pre-installed auxiliary switches reduce the complexity of your design. The devices are approved for worldwide use (e.g. IEC and UL/CSA) and are IE3/IE4-ready.They are available in two sizes, with AC and DC operation, and in a wide performance range. The devices can be connected in the main circuit by means of rails.A wide range of accessories is available for these contactors, such as surge suppressors, auxiliary switches or terminal covers.