3RW4423-1BC36

This model is compatible with the 400 to 690V European standard extended voltage range, uses a 115V AC control voltage and screw terminals, and belongs to the Siemens SIRIUS 3RW44 series suitable for higher power supply voltage applications.

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Siemens 3RW4423-1BC36 SIRIUS soft starter product image

Product Positioning

The 3RW4423-1BC36 is a soft starter model in the SIRIUS 3RW44 series with a rated voltage extended to 400 to 690V, suitable for three-phase motor applications in some European and Asian factories that use higher supply voltages.

Core Product Advantages and Features

Extended to a voltage range of 690V

Compared to the standard 460V model, the rated voltage range extends to 690V, which is compatible with higher European power supply systems.

115V control power supply design

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

Built-in bypass connection

After startup, the circuit switches to bypass contact to reduce the continuous heating of the thyristor.

Adjustable current limiting startup

The starting current limit value can be adjusted according to the motor load to reduce the impact on the power grid at the moment of startup.

project	Specification
model	3RW4423-1BC36
Product Category	SIRIUS 3RW44 Miniature Three-Phase Soft Starter
Rated voltage range	400~690 V AC
Control voltage	AC 115 V (50/60 Hz)
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
Applicable frequency	50/60 Hz
Motor overload protection	Built-in motor overload protection function
Application fields	Three-phase induction motors suitable for higher power supply voltage levels

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3RW4423-1BC44

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3RW4423-1BC35

This model supports a wide voltage range of 400 to 600V, uses a 115V AC control voltage, and can power a 25hp motor at 575V (US standard). It is suitable for the starting needs of three-phase motors in mixed North American and European power supply environments.

3RW4422-3BC44

Standard wiring provides 29A and 15kW, while delta wiring can reach 50A and 22kW. The control circuit uses spring-loaded terminals, which speeds up wiring installation. The electrical specifications are the same as the screw-terminal models in the same series, only the wiring method differs.