3RW4426-1BC44
The SIRIUS 3RW44 series soft starters have a standard rated output of 77 amps and 37 kW at 400 volts, and an internal delta connection output of 133 amps and 75 kW. The main circuit voltage range is 200 to 460 volts, the control voltage is 230 volts, and the front panel protection rating is IP20.
Product Positioning
The 3RW4426-1BC44 is a small soft starter from the Siemens SIRIUS 3RW44 series. It starts motors using a thyristor-based progressive voltage regulation method, reducing the mechanical and electrical shocks caused by direct starting. It is suitable for applications such as pumps and fans with small to medium power three-phase motors.
Core Product Advantages and Features
Dual-connection power flexible configuration
The standard connection is 37 kW, and the internal delta connection is 75 kW. Select the corresponding output according to the motor winding wiring method.
230-volt control circuit
The control voltage is 230 volts AC, which is directly compatible with the power supply of common medium-sized distribution panels, eliminating the need for an additional transformer.
Box-type terminals have excellent load-bearing capacity
The main circuit adopts a box-type terminal design, which is suitable for stable termination of larger diameter wires.
Front panel IP20 protection
The front panel has an IP20 protection rating, making it suitable for installation in general industrial distribution boxes.
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3RW4427-1BC34
The SIRIUS 3RW44 series soft starter has a standard rated capacity of 93 amps and 45 kilowatts at 400 volts and 60 horsepower at 460 volts and 50°C. It uses 115 volt AC for control and has IP20 protection on the front panel, making it easy to integrate with existing 115 volt control panels.
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3RW4426-1BC35
The SIRIUS 3RW44 high-voltage model has a main circuit covering 400 to 600 volts AC. The standard rated capacity for 400 volts is 77 amps and 37 kilowatts, while the capacity for 575 to 600 volts corresponds to 50 horsepower. The control voltage is 115 volts, and the unit weighs approximately 5.69 kg, making it compact and easy to install.
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3RW4426-1BC34
The SIRIUS 3RW44 series soft starter has a standard rated capacity of 77 amps and 37 kilowatts at 400 volts, and 50 horsepower at 460 volts and 50°C. With an internal delta connection, it can reach 75 horsepower. The control voltage is 115 volts AC, and the front panel protection rating is IP20.