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Siemens 3RW3038-1BB04 SIRIUS S2 Soft Starter - 72A, 37kW

Siemens SIRIUS S2 Soft Starter (37kW, 72A, 200-480V AC)

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ManufacturerSiemens

Part number3RW3038-1BB04

Type S2

Rated operational current 72 A

Rated power 37 kW (at 400 V)

Supply voltage 200-480 V AC

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Smooth motor acceleration Reduced inrush current Integrated overload protection Compact design Screw terminal connections

Product description

The Siemens 3RW3038-1BB04 is a SIRIUS S2 soft starter designed for smooth motor acceleration. It has a rated current of 72A and can handle a power output of 37 kW at 400V. The device operates with a voltage range of 200-480V AC and a control voltage of 24V AC/DC, featuring convenient screw terminals for connection.

This soft starter is ideal for applications requiring controlled motor startup, reducing mechanical stress on machinery and electrical inrush current. It is commonly used in pump, fan, and conveyor systems across various industrial sectors where precise motor control is essential.

Source your Siemens 3RW3038-1BB04 from Stanlo Automation, a veteran-owned distributor committed to providing reliable surplus industrial parts. Benefit from our extensive inventory and dedicated customer service.

Technical specifications

Type	S2
Rated operational current	72 A
Rated power	37 kW (at 400 V)
Supply voltage	200-480 V AC
Control voltage	24 V AC/DC
Connection type	Screw terminals
Series	SIRIUS 3RW30

Common applications

Motor control

Pump applications

Fan control

Conveyor systems

Industrial machinery

Compatible systems

Compatible with various AC motors requiring soft-start functionality Suitable for integration into standard control panels

Also known as

Siemens SIRIUS soft starter 3RW3038-1BB04 3RW30 S2 soft starter

Replaces / compatible with

This soft starter is designed to replace direct-on-line starters and provide controlled motor starting for various applications.

Technical note

Expert tip

Ensure proper heat dissipation by adhering to the mounting and ambient temperature guidelines specified for the SIRIUS 3RW30 series.

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Frequently asked questions

What is the maximum power output for the Siemens 3RW3038-1BB04 soft starter?

The Siemens 3RW3038-1BB04 soft starter has a maximum rated power output of 37 kW when used with a 400V supply. It is designed for smooth acceleration and protection of motors.