Siemens SIRIUS 3RW44 Soft Starter - 51A, 40HP @ 575V

The Siemens SIRIUS 3RW4425-1BC36 is a soft starter designed to gradually increase motor voltage, reducing starting current and mechanical stress on machinery. This unit is rated for standard operation at 575V with a 50°C ambient temperature, handling 51 Amps and providing 40 HP motor starting capability. For inside-delta configurations, it supports 88 Amps and 75 HP. It operates within a 400-690V AC main voltage range and features a 115V AC control voltage.

This soft starter is crucial for applications requiring smooth motor acceleration, such as pumps, fans, compressors, and conveyors, to prolong equipment life and improve energy efficiency. It is commonly used in manufacturing, water treatment, and HVAC systems where high starting torque is not required but smooth power application is beneficial.

As a veteran-owned surplus distributor, Stanlo Automation provides access to reliable industrial components. The Siemens 3RW4425-1BC36, though phased out, can still be a critical part for maintaining existing systems. Source your components from Stanlo Automation for dependable solutions.