Siemens SIRIUS 3RW40 Soft Starter - 280A, 200kW, 400-600V AC

Siemens SIRIUS 3RW40 soft starter, 280A, 200kW, 400-600V AC.

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ManufacturerSiemens

Part number3RW4074-6BB45

Type Soft Starter

Series SIRIUS 3RW40

Size S12

Rated Current 280 A

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CAGE: 9NK75

Smooth Motor Acceleration Reduced Mechanical Stress Reduced Electrical Stress Rated for 280A 200kW Motor Capacity Screw Terminals

Product description

The Siemens 3RW4074-6BB45 is a SIRIUS soft starter, size S12, rated for 280 Amperes and capable of controlling motors up to 200 kW at 500 V. It operates with an input voltage range of 400-600 V AC and requires a 230 V AC control voltage. This unit features screw terminals for connection. Please note that this is a phased-out product, with the SIRIUS 3RW5 series being its successor.

This soft starter is designed to provide smooth acceleration for three-phase induction motors, reducing mechanical stress on equipment and electrical stress on the power supply during motor startup. It is suitable for a wide range of industrial applications, including pumps, fans, compressors, and conveyors, where controlled motor starting is essential.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RW4074-6BB45. While this is a phased-out item, we can help you source reliable surplus components. Trust Stanlo Automation for your industrial automation needs, ensuring quality and value.

Technical specifications

Type	Soft Starter
Series	SIRIUS 3RW40
Size	S12
Rated Current	280 A
Motor Power	200 kW / 500 V (AC-3)
Input Voltage	400-600 V AC
Control Voltage	230 V AC
Terminals	Screw
Status	Phased-out

Common applications

Pump Control

Fan Control

Compressor Starting

Conveyor Systems

Motor Control Centers

Industrial Machinery

Compatible systems

Three-phase induction motors 400-600V AC power systems

Also known as

Siemens SIRIUS 3RW40 S12 Soft Starter

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RW5 series, with the 3RW5074-6AB15 being a specific preferred successor type.

Technical note

Expert tip

When replacing this phased-out unit, verify that the successor model's physical dimensions and electrical connections are compatible with your existing control panel.

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Frequently asked questions

What is the maximum motor power that the Siemens 3RW4074-6BB45 soft starter can control?

The Siemens SIRIUS 3RW4074-6BB45 soft starter is designed to control motors with a maximum power rating of 200 kW at 500 V AC (AC-3 rating).