3RW3038-1BB04

The Siemens SIRIUS 3RW3038-1BB04 soft starter, with a 3RW30 basic model S2 frame, has a rated current of 72A and a 400V rating, suitable for 37kW three-phase motors. The main circuit operates at AC200-480V, while the control voltage is 24V AC/DC. It uses screw terminal wiring and is suitable for large motor applications in PLC standard 24V control circuits.

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Product Positioning

The 3RW3038-1BB04 is the Siemens SIRIUS 3RW30 basic soft starter. The S2 frame is designed for a 72A rated current and a 37kW motor at 400V, and it adopts a 24V AC/DC control voltage design.

Core Product Advantages and Features

S2 chassis with moderate current

With a rated current of 72A and a voltage of 400V, it corresponds to a 37kW three-phase motor, suitable for medium to large load equipment.

24V standard control voltage

The control voltage is 24V AC/DC, which makes it easy to integrate with standard PLC output modules.

Screw terminal wiring

The standard screw terminal design makes on-site wiring, installation, maintenance, and replacement convenient.

Wide voltage range of main circuit

The main circuit can be connected to AC200-480V, making it suitable for use in different power grid voltage environments.

project	Specification
Product Series	SIRIUS 3RW30 Basic Model
Frame size	S2
Rated operating current Ie (40°C)	72 A
Corresponding motor power (400V)	37 kW
Main circuit rated voltage	AC 200-480V
Control voltage	24V AC/DC
Wiring method	Screw terminals

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