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Siemens SIRIUS 3RW4038-1BB05 Soft Starter - 72A, 45kW

Siemens 3RW4038-1BB05 SIRIUS soft starter - 72A, 45kW.

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ManufacturerSiemens

Part number3RW4038-1BB05

Rated Operational Current (40°C) 72A

Rated Power (500V) 45 kW

Control Supply Voltage 24V AC/DC

Supply Voltage 400-600V AC

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Integrated bypass contact system Motor overload protection Adjustable current limitation 400-600V AC supply voltage 24V AC/DC control voltage Screw terminals

Product description

The Siemens 3RW4038-1BB05 is a SIRIUS soft starter designed for smooth and controlled motor acceleration. It features an operational current of 72A at 40°C and a rated power output of 45 kW at 500V. The control voltage is 24V AC/DC, and it operates within a supply voltage range of 400-600V AC.

This soft starter is ideal for applications requiring reduced mechanical stress on machinery, such as conveyor systems, pumps, fans, and compressors. Its integrated bypass contact system and motor overload protection enhance reliability and operational efficiency in industrial settings.

Secure your Siemens 3RW4038-1BB05 soft starter from Stanlo Automation, your veteran-owned source for surplus industrial automation parts. We provide reliable components to keep your operations running smoothly.

Technical specifications

Rated Operational Current (40°C)	72A
Rated Power (500V)	45 kW
Control Supply Voltage	24V AC/DC
Supply Voltage	400-600V AC
IP Rating	Not specified
Series	SIRIUS 3RW40

Common applications

Motor Starting

Pump Control

Fan Control

Conveyor Systems

Compressor Control

Industrial Machinery

Compatible systems

AC Motors Industrial Control Panels

Also known as

Siemens SIRIUS 3RW40 Soft Starter 72A 45kW Soft Starter

Replaces / compatible with

This is a current model within the SIRIUS 3RW40 series. For replacements, consider other models within the same series with similar current and power ratings.

Technical note

Expert tip

This soft starter is part of the SIRIUS 3RW40 series and features an integrated bypass contact system for efficient operation.

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Frequently asked questions

What is the rated operational current of the Siemens 3RW4038-1BB05 soft starter at 40°C?

The Siemens 3RW4038-1BB05 soft starter has a rated operational current of 72A at 40°C. It also has a rated power of 45 kW at 500V.