Power contactor AC-1 1700A / 690 V / 40°C 3-pole, Uc: 220-240 V AC(50-60 Hz) / DC Drive: conventional Auxiliary contacts 2 NO + 2 NC Main circuit: rail Control and auxiliary circuit: screw connection Contactor SIRIUS 3RT14 for switching resistive loads.The 3RT1 contactors are part of the SIRIUS modular system with its optimally coordinated products. They impress with their high performance combined with a compact design and high contact reliability. They can be combined in many ways with other components in the load feeder. The contactors offer the right connection to the controller for every application (directly or via PLC input). Pre-assembled auxiliary switches reduce the complexity of your setup. The 3RT1 contactors are climate-resistant and approved worldwide (e.g. IEC and UL/CSA).Simple, efficient, always up-to-date - the SIRIUS modular system.