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Siemens SIRIUS 3RA1445-8XC21-1AL2

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3RA1445-8XC21-1AL2

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The Siemens SIRIUS 3RA1445-8XC21-1AL2 is a highly efficient contactor assembly designed to manage electrical loads effectively. With a power rating of 75 kW and a voltage rating of 400 V, it provides reliable performance in various industrial applications.

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Technical specifications for 3RA1445-8XC21-1AL2

ManufacturerSiemens
Product TypeContactor Assembly
Product LineSIRIUS
Part Number3RA1445-8XC21-1AL2
EAN4011209378001
Weight13.00 lbs (5.90 kg)
Power Rating75 kW
Voltage Rating400 V
Number of Poles3
SizeS3
Electrical ConnectionScrew Terminals
Minimum Operating Frequency50 Hz
Maximum Operating Frequency60 Hz
Number of Phases3
Maximum Ambient Temperature40 degrees Celsius
Minimum Ambient Temperature0 degrees Celsius
Maximum Operating Humidity80% (non-condensing)
Maximum Storage Humidity80% (non-condensing)
Maximum Operating Altitude1000 meters above sea level
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The 3RA1445-8XC21-1AL2 contactor model from Siemens is categorized as a contactor assembly within the SIRIUS series. This component is engineered for high operational efficiency, featuring a substantial power rating of 75 kW at a 400-volt voltage level. It is configured with three poles, ensuring effective current management within connected circuits.

With a physical size classified as S3, this contactor assembly is equipped with screw terminals for secure electrical connections. The unit is suitable for frequencies ranging from 50 Hz to 60 Hz, allowing flexibility across different electrical systems. Weighing in at 5.906 kg, it can be easily integrated into existing setups without significant alterations.

The operational temperature range extends from 0 °C to 40°C, enabling safe functionality in various industrial environments. It can withstand humidity levels of up to 80% without the risk of condensation, and is designed to function efficiently at elevations not exceeding 1000 meters above sea level.