The Siemens 3RW4426-1BC44 is a soft from the SIRIUS 3RW44 series. It is designed to control the starting and stopping of three-phase induction motors, providing a smooth and controlled acceleration and deceleration. The soft starter helps reduce mechanical stress on the motor and the connected equipment, improving the overall system reliability.

Some key features of the 3RW4426-1BC44 soft starter include:

1. Motor voltage: Up to 400 V.

2. Rated motor current: Up to 125 A.

3. Built-in bypass contactor: Allows for efficient operation and reduced power losses during steady-state motor operation.

4. Integrated motor overload protection: Protects the motor against excessive current and overheating.

5. Programmable ramp-up and ramp-down times: Allows customization of motor start/stop profiles based on application requirements.

6. Control voltage: 24 V DC.

7. Communication options: The soft starter supports communication modules for integration with different industrial communication networks.

With its advanced motor control features and robust construction, the Siemens 3RW4426-1BC44 soft starter is suitable for a wide range of applications, including pumps, fans, compressors, conveyors, and more.