The Siemens 3RW4038-1BB04 soft starter, part of the SIRIUS 3RW40 series, is designed to provide smooth starting and stopping of three-phase asynchronous motors. This starter reduces mechanical stress on equipment and prevents sudden voltage surges in the network, which helps extend equipment life and reduce maintenance costs.
Main characteristics:
- Rated current: 72 A
- Power: 37 kW at 400 V
- Voltage range: 200-480 V AC
- Control voltage: 24 V AC/DC
- Connection type:Screw terminals
- Temperature range:Up to 40°C
- Package dimensions: 200 x 100 x 170 mm
- Weight: 1,296 kg
- Origin:Czech Republic
- Compliance with standards:RoHS since May 1, 2012, WEEE (2012/19/EU)
Advantages:
- Reduced mechanical shock: Smooth engine starting and stopping prevents mechanical damage and extends equipment life.
- Reduced energy consumption:Efficient energy management helps save energy.
- Motor protection: Built-in overload and overheat protection functions ensure safe and reliable operation.
- Easy to install and connect: Screw terminals simplify the installation and connection process.
This soft starter is ideal for use in a variety of industrial applications where reliable and efficient motor control is required.






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