Siemens SIRIUS 3RT Size S12, 3RT1 Contactor, 277 V Coil, 3-Pole, 500 A, 250 kW, 2NO + 2NC

The Siemens 3RT1 power contactor offer convincing performance from a compact design with high contact reliability. They can be combined with a variety of other components in the load feeder. The contactors offer the best connection to the automation level for every application (direct or via PLC input).The 3RT1 contactor are climate-resistant, approved for worldwide use (e.g. IEC and UL/CSA) and are IE3/IE4-ready.
They can be operated with AC or DC, and some versions have a wide voltage range and a PLC control input. The devices can be connected in the main circuit by means of rails or box terminals. For the auxiliary and control circuit they are also available with spring-type terminals for fast, maintenance-free and vibration-proof connection.

The contactor are available in various sizes and in a wide performance range
Pre-installed auxiliary switches reduce the complexity of your design