3RW4027-1BB04

The SIRIUS 3RW4027-1BB04 soft starter is a standard model (without thermistor input), rated current 32A, capable of controlling a 15kW/400V three-phase motor, control voltage 24V AC/DC, and uses screw terminals and DIN rail mounting.

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Product Positioning

The 3RW4027-1BB04 is a standard soft starter in the Siemens SIRIUS 3RW40 series S0 frame, with a rated current of 32A, capable of controlling 15kW/400V motors, and providing 24V AC/DC control voltage. It is one of the most popular control voltage combinations in the series.

Core Product Advantages and Features

Standard design

Without a thermistor input, it primarily features basic electronic overload protection and is suitable for general pumps, fans, and other loads.

24V control voltage

It adopts a 24V AC/DC control voltage, which is compatible with most existing 24V control circuits and is easy to integrate.

Electronic overload protection

Built-in electronic overload relays replace traditional thermoelectric protection components, improving reliability.

Flexible installation method

It supports two mounting methods: DIN rail clips or screw fixing, to adapt to different control box configurations.

project	Specification
model	3RW4027-1BB04
Product Series	SIRIUS 3RW40
Frame size	S0
Rated current	32 A
Corresponding motor power	15 kW / 400 V
Rated operating voltage range	200-480 V AC
Control voltage	24 V AC/DC
Product Version	Standard type (BB, without thermistor input)
Terminal type	Screw terminals
Installation method	DIN rail/screw fixing
Overload protection	Electronic overload relay

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3RW4026-2BB04

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3RW4026-1TB04

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