3RW4422-1BC35

This model is compatible with a wide voltage range of 400 to 600V, uses 115V AC control voltage, and its standard wiring can support a 20hp motor at 575V (US standard). It is one of the smallest capacity US standard voltage models in the Siemens SIRIUS 3RW44 series.

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Siemens 3RW4422-1BC35 SIRIUS soft starter product image

Product Positioning

The 3RW4422-1BC35 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 small three-phase motors with US standard 575 to 600V.

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.

US standard 575V corresponds to 20hp

The standard wiring is compatible with 20hp small motors with a US standard voltage of 575V.

project	Specification
model	3RW4422-1BC35
Product Category	SIRIUS 3RW44 Miniature Three-Phase Soft Starter
Rated current (standard wiring, 50°C)	26 A
Rated current (delta connection, 50°C)	45 A
Rated power (575V, standard wiring, US standard)	20 hp
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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