3RW4426-1BC44

The Siemens 3RW4426-1BC44 soft starter is engineered for effective motor management in industrial environments. Capable of operating within an input voltage range of 200 to 460 V AC, this unit ensures versatility across a variety of applications. Its current rating of 77 A at 400 V makes it efficient while handling substantial electrical loads. The soft starter works optimally with a frequency range of 50 to 60 Hz.

The output voltage is set at 230 V AC via accessible screw terminals, allowing for straightforward electrical connections. With an internal delta power rating of 37 kW and a maximum power rating of 75 kW, this device can effectively support a range of motor sizes. The unit is designed to be mounted on panels or DIN rails, offering flexibility in installation according to operational needs.

The soft starter features an air-cooling mechanism that helps maintain optimal performance while managing heat during operation. The maximum current handling capacity of this soft starter is rated at 133 A, enabling it to manage overload situations with ease. An LED screen is available for real-time monitoring, enabling users to clearly view the operational status.

The IP20 protection rating ensures that the soft starter is suitable for indoor use in clean environments, safeguarding its internal components from dust and damage. Weighing in at 2.26 kg, the design strikes a balance between performance and manageable weight, making installation more accessible in various settings.