Item Technical Parameter
Utilization Category AC-3 (Inductive motor load)
Rated Power @400V 75 kW three-phase asynchronous motor
Rated Operational Current 150 A
Number of Poles 3-pole main circuit
Contactor Frame Sizes Main: S3, Delta: S3, Star: S2
Control Coil Voltage AC 230 V, 50 / 60 Hz
Coil Operating Voltage Range 0.8 ~ 1.1 × rated voltage
Terminal Connection Type Screw terminals
Interlock Type Electrical interlock + mechanical interlock dual protection (prevent short-circuit)
Mounting Standard 35 mm DIN rail mounting
Protection Class IP20 (For cabinet internal installation)
Built-in Accessory Side-mounted adjustable timing relay (Star-delta switching delay)
About the SIEMENS SIRIUS 3RA1445-8XC21-1AL21
The SIEMENS SIRIUS 3RA1445-8XC21-1AL21 is a electrical products used in industrial automation, control and power systems. It is rated at Contactor Frame Sizes Main S3, Delta: S3, Star: S2. This electrical products is supplied as new, original industrial-grade stock. Each unit is identified by manufacturer part number SIEMENS SIRIUS 3RA1445-8XC21-1AL21 for accurate procurement and cross-referencing.
Why source the SIEMENS SIRIUS 3RA1445-8XC21-1AL21 from HDE123
- Verified part number: every SIEMENS SIRIUS 3RA1445-8XC21-1AL21 is checked against its manufacturer specification before shipment.
- 1 confirmed technical parameters available on this page for engineering review.
- Global delivery with clear lead time and commercial invoice for B2B buyers.
- Fast B2B support: send us the equipment model or an existing part number and our engineers confirm compatibility before you order.
Ordering the SIEMENS SIRIUS 3RA1445-8XC21-1AL21
To order the SIEMENS SIRIUS 3RA1445-8XC21-1AL21, add it to your cart and complete checkout, or use the Request a Quote form for volume purchases and replacement / cross-reference enquiries. Lead time: typically 3–10 working days for in-stock items, subject to confirmation. Worldwide shipping is available and a commercial invoice is provided for customs.