3RA2445-8XE32-1NB3 SIEMENS

The 3RA2445-8XE32-1NB3 from Siemens is a complete contactor assembly specifically designed for star-delta (wye-delta) starting of three-phase motors. This assembly offers a convenient and efficient solution for reducing inrush current during motor startup, minimizing stress on the electrical grid and the motor itself. It is rated for AC-3 duty, making it suitable for standard motor applications with frequent starting and stopping. The contactor assembly is capable of controlling motors up to 75 kW at 400 V. It features an IO-Link interface for advanced communication and diagnostics, enabling seamless integration into automation systems. The control voltage is 20-33 V AC/DC, providing flexibility in power supply options. This Size S3 assembly utilizes screw terminals for secure and reliable electrical connections. Furthermore, it incorporates both electrical and mechanical interlocks to prevent short circuits and ensure safe operation. Integrated varistors offer surge protection, safeguarding the contactor components from voltage spikes. Auxiliary contacts include 3 normally open (NO) and 3 normally closed (NC) contacts for versatile control and feedback capabilities.