Power contactor AC-1 275 A / 690 V / 40°C 3-pole, Uc: 21-27.3 V AC(50-60 Hz) / DC PLC input 24 V DC Drive: electronic 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). They are available in various sizes and in a wide power range. They can be operated with AC or DC, some versions have a wide voltage range and a PLC control input. In the main circuit, the devices can be connected via rails or box terminals. For the auxiliary and control circuits, they are also available with spring-loaded connections for a quick, maintenance-free and vibration-proof connection. There are a wide range of accessories for these contactors, such as wiring kits that significantly reduce the wiring effort, auxiliary switches or terminal covers. Simple, efficient, always up-to-date - the SIRIUS modular system.