3RA2445-8XF32-1AL2 SIEMENS

The 3RA2445-8XF32-1AL2 Siemens contactor assembly is specifically designed for star-delta (wye-delta) starting applications in AC-3 utilization category. It is suitable for motors with a power rating of 75 kW at 400 V. The assembly operates on a 230 V AC control voltage at 50/60 Hz. This contactor assembly comes in size S3, offering a compact design for efficient space utilization within electrical panels. It features screw terminals for secure and reliable electrical connections. An electrical and mechanical interlock is integrated to prevent simultaneous closing of the main and delta contactors, ensuring safe operation. The contactor assembly includes 3 normally open (NO) and 3 normally closed (NC) auxiliary contacts for versatile control and monitoring capabilities. These auxiliary contacts allow for signaling, interlocking, and other control functions within the motor control circuit. The robust design and high-quality components ensure reliable performance and long service life in demanding industrial environments. This contactor assembly is ideal for applications requiring reduced starting current and smooth acceleration of motors.