3RA2446-8XF32-1AG2 SIEMENS

The 3RA2446-8XF32-1AG2 from Siemens is a contactor assembly specifically designed for star-delta (wye-delta) starting applications. It is suitable for AC-3 duty, with a power rating of 90 kW at 400 V. The control voltage is 110 V AC, operating at 50/60 Hz. This assembly is size S3, indicating its physical dimensions and current handling capacity within the Siemens contactor range. It features screw terminals for secure and reliable electrical connections. An electrical and mechanical interlock is integrated to prevent simultaneous closure of incompatible contactors, enhancing safety and preventing short circuits. The contactor assembly includes 3 normally open (NO) and 3 normally closed (NC) auxiliary contacts for flexible control circuit integration and status indication. Star-delta starters are commonly used to reduce inrush current during motor startup, protecting the electrical grid and motor windings. This pre-assembled unit simplifies installation and ensures proper coordination between the contactors. Siemens is a trusted brand known for high-quality and reliable industrial control components.