
Siemens
- Available:
- 1 pc.On RequestUpdated at: 22-08-2026
- Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees
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The SIRIUS soft starter is an advanced solution designed to meet the needs of demanding industrial applications. With a capacity of up to 400 V and 40 °C standard, it offers a robust performance with a maximum current rating of 693 A and power handling capability of 400 kW. The soft starter is equipped with screw terminals for easy installation and maintenance.
For applications requiring higher power demands, the SIRIUS soft starter also offers an Inside-delta configuration. This configuration provides a maximum current rating of 1200 A and power handling capability of 710 kW, making it suitable for 200-460 V AC and 230 V AC applications.
The SIRIUS soft starter is a phased-out product. The preferred successor type is the SIRIUS 3RW5. For more information on the successor, please refer to the model >>3RW5553-6HA14<<.

Siemens
Siemens
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Datasheet for Siemens 3RW4455-6BC44, including specifications and features.
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