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Siemens 3RW4423-1BC44 SIRIUS Soft Starter

Siemens 3RW4423-1BC44 SIRIUS Soft Starter.

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ManufacturerSiemens

Part number3RW4423-1BC44

Standard values at 400V, 40°C 36 A, 18.5 kW

Inside-delta 62 A, 30 kW

Voltage 200-460 V AC

Control Voltage 230 V AC

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Smooth motor start/stop Reduced mechanical stress Overload protection Energy saving Reliable Siemens quality

Product description

The Siemens 3RW4423-1BC44 is a SIRIUS soft starter designed for smooth motor acceleration and deceleration. It operates with standard values of 36A at 400V and 40°C, and 62A inside-delta, with a voltage range of 200-460V AC and a 230V AC control voltage. This model features screw terminals for secure connections.

Ideal for applications requiring controlled motor starts, this soft starter is suitable for various industrial machinery, including pumps, fans, and conveyors. Its ability to reduce mechanical stress during startup makes it valuable in industries such as manufacturing, water treatment, and material handling.

Source your Siemens 3RW4423-1BC44 from Stanlo Automation, a veteran-owned distributor committed to providing reliable surplus automation parts. We ensure quality and availability for your critical industrial needs.

Technical specifications

Standard values at 400V, 40°C	36 A, 18.5 kW
Inside-delta	62 A, 30 kW
Voltage	200-460 V AC
Control Voltage	230 V AC
Terminals	Screw

Common applications

Motor control

Pump systems

Fan applications

Conveyor belts

Industrial machinery

Compatible systems

SIRIUS 3RW5 series

Also known as

Siemens SIRIUS 3RW44 Soft starter 3RW4423-1BC44 Siemens 3RW44

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5517-1HA14.

Technical note

Expert tip

Note that this product is phased out and has been succeeded by the SIRIUS 3RW5 series.

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Frequently asked questions

What are the main electrical specifications for the Siemens 3RW4423-1BC44?

The Siemens 3RW4423-1BC44 soft starter is rated for 36A at 400V, 40°C under standard conditions, and 62A inside-delta. It operates with a voltage range of 200-460V AC and requires a 230V AC control voltage.