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Siemens 3RW4444-6BC45 SIRIUS Soft Starter - 250A 160kW

Siemens 3RW4444-6BC45 SIRIUS Soft Starter with 250A standard rating.

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ManufacturerSiemens

Part number3RW4444-6BC45

Voltage 400-600V AC

Control Voltage 230V AC

Standard Current 250A

Standard Power 160kW

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Veteran-owned

CAGE: 9NK75

High performance soft starter Controlled motor start/stop Inside-delta configuration Screw terminal connections SIRIUS design Phased-out product

Product description

The Siemens 3RW4444-6BC45 is a SIRIUS soft starter designed for reliable motor control. It operates at 400-600V AC with a 230V AC control voltage. At 500V and 40°C standard conditions, it handles 250A and 160kW. In an inside-delta configuration, it can manage up to 433A and 315kW. This unit features screw terminals for secure connections.

This soft starter is suitable for various industrial applications requiring controlled motor acceleration and deceleration, such as pumps, fans, and conveyors. Its robust design ensures dependable performance in demanding environments.

Stanlo Automation, a veteran-owned business, offers this phased-out Siemens part, with the preferred successor being the 3RW5544-6HA16. Source your industrial automation needs from Stanlo for quality and reliable service.

Technical specifications

Voltage	400-600V AC
Control Voltage	230V AC
Standard Current	250A
Standard Power	160kW
Inside-Delta Current	433A
Inside-Delta Power	315kW
Temperature	40°C
Connection	Screw terminals
Series	SIRIUS 3RW44

Common applications

Motor control

Pump systems

Fan control

Conveyor systems

Industrial machinery

HVAC systems

Compatible systems

General motor control applications

Also known as

SIRIUS 3RW4444-6BC45 Siemens Soft Starter 3RW44 3RW44446BC45

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RW5544-6HA16.

Technical note

Expert tip

This unit is a phased-out product; ensure compatibility with existing systems or consider the successor 3RW5544-6HA16.

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Frequently asked questions

What are the key specifications for the Siemens 3RW4444-6BC45 soft starter?

The Siemens 3RW4444-6BC45 is rated for 400-600V AC with a 230V AC control voltage. It provides a standard rating of 250A and 160kW at 500V/40°C, and an inside-delta rating of 433A and 315kW.