The Siemens 3RT23 contactor has screw terminal and its used for switching resistive loads. The 3RT23 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 contactor offer the best connection to the automation level for every application. Integrated auxiliary switches reduce the complexity of your configuration. The front-panel terminals simplify the wiring. 3RT23 contactor are climate-resistant and approved for worldwide use (e.g. IEC and UL/CSA). Mounting type is screw and Snap-On mounting Ambient operating temperature is -25 to +60 °C Protection class for frount IP20 and terminals is IP00