3RW4424-1BC35

Standard wiring 42A, delta wiring 73A, using 115V AC control voltage, compatible with a wide voltage range of 400 to 600V and US standard 575V motor power rating, suitable for the smooth starting requirements of three-phase motors in production lines that meet both North American and European standards.

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Siemens 3RW4424-1BC35 SIRIUS soft starter product image

Product Positioning

The 3RW4424-1BC35 is a soft starter model in the SIRIUS 3RW44 series that corresponds to voltage levels from 400 to 600V. It uses 115V AC as the control power supply and is suitable for production line environments that use American standard 575 to 600V three-phase motors.

Core Product Advantages and Features

115V control power supply design

The control circuit is powered by 115V AC, which facilitates integration with the existing power supply system of the US standard control panel.

Wide voltage range from 400 to 600V

The same device can handle various field voltages from 400V to 600V, improving the flexibility of selection across regions.

Built-in bypass connection

After startup, the circuit switches to bypass contact conduction to reduce the continuous heating and energy consumption of the thyristor.

Delta connection to increase power

The inside-Delta wiring method increases the power of the driveable motor and saves installation space.

project	Specification
model	3RW4424-1BC35
Product Category	SIRIUS 3RW44 Miniature Three-Phase Soft Starter
Rated current (standard wiring, 50°C)	42 A
Rated current (delta connection, 50°C)	73 A
Rated power (400V, standard wiring)	22 kW
Rated power (500V, standard wiring)	30 kW
Rated power (575~600V, standard wiring)	30 hp (US specification)
Rated power (575~600V, delta connection)	60 hp (US specification)
Rated voltage range	400~600 V AC (-15%/+10%)
Control voltage	AC 115 V (50/60 Hz)
Enclosure protection rating	IP00
Main circuit terminals	Crimp terminal (box terminal)
Control circuit wiring terminals	Screw terminals
External dimensions (width x height x depth)	170 x 192 x 270 mm

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3RW4424-1BC34

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3RW4423-1BC44

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