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Siemens 3RW4423-1BC45 SIRIUS Soft Starter - Phased Out

Siemens 3RW4423-1BC45 SIRIUS soft starter.

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ManufacturerSiemens

Part number3RW4423-1BC45

Voltage 400-600 V AC

Control Voltage 230 V AC

Standard Current 36 A (500V, 40°C)

Inside-Delta Current 62 A

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Veteran-owned

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Soft start functionality Reduced mechanical stress Reduced electrical stress Overload protection Energy saving Screw terminals

Product description

The Siemens 3RW4423-1BC45 is a SIRIUS soft starter designed for smooth motor acceleration. It offers values of 36 A at 500 V (40°C standard) and 62 A inside-delta, with corresponding power ratings of 22 kW and 37 kW. This unit operates on 400-600 V AC and uses 230 V AC for control, featuring screw terminals for connection.

This soft starter is suitable for various industrial applications requiring controlled motor start-up, such as conveyors, pumps, and fans. It helps to reduce mechanical stress on machinery and electrical stress on the power supply. Industries including manufacturing, water treatment, and material handling can benefit from its controlled starting capabilities.

As a veteran-owned surplus parts distributor, Stanlo Automation provides access to hard-to-find and discontinued components like the Siemens 3RW4423-1BC45. We ensure quality and reliability, offering a cost-effective solution for maintaining and upgrading your existing automation systems. Source your critical parts with confidence from Stanlo Automation.

Technical specifications

Voltage	400-600 V AC
Control Voltage	230 V AC
Standard Current	36 A (500V, 40°C)
Inside-Delta Current	62 A
Standard Power	22 kW (500V, 40°C)
Inside-Delta Power	37 kW
Terminals	Screw

Common applications

Motor control

Pump control

Fan control

Conveyor systems

Manufacturing equipment

Material handling

Compatible systems

Siemens SIRIUS motor control systems

Also known as

Siemens SIRIUS 3RW44 3RW44 Soft Starter Soft Starter 3RW4423

Replaces / compatible with

This product is phased out. The preferred successor is the Siemens 3RW5517-1HA15.

Technical note

Expert tip

This is a phased-out product. Ensure compatibility with existing control systems and consider the successor 3RW55 series for new installations.

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Frequently asked questions

What are the key specifications for the Siemens 3RW4423-1BC45 soft starter?

The Siemens 3RW4423-1BC45 soft starter is rated for 400-600V AC with a control voltage of 230V AC. It provides 36A in standard operation and 62A inside-delta at 500V (40°C), corresponding to 22kW and 37kW respectively. It features screw terminals.