The Siemens 3RT2 series power contactor has screw terminals and its used for switching motors. The 3RT2 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. Integrated auxiliary switches reduce the complexity of your design. The front-panel terminals simplify the wiring. The 3RT2 contactor are climate-resistant, approved for worldwide use (e.g. IEC and UL/CSA) and are IE3/IE4-ready. The available link modules, function modules and the SIRIUS 3RV29 infeed system considerably reduce the wiring expense. Mounting type is screw and Snap-On mounting Ambient operating temperature is -25 to +60 °C Protection class for frount and terminals is IP20