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Siemens 3RW4422-1BC46 SIRIUS Soft Starter - 29A, 30kW

Siemens 3RW4422-1BC46 SIRIUS soft starter for motor control.

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ManufacturerSiemens

Part number3RW4422-1BC46

Rated Current (standard) 29 A

Rated Power (standard at 690V) 30 kW

Voltage Range 400-690 V AC

Connection Type Screw Terminals

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Soft motor starting Reduces mechanical stress Limits inrush current 29A / 30kW rating at 690V Screw terminals for connection

Product description

The Siemens 3RW4422-1BC46 is a SIRIUS soft starter designed for controlled motor start-ups. It has standard ratings of 29 A and 30 kW at 690 V (40 °C). For inside-delta connections, it supports up to 600 V. The unit operates on 400-690 V AC power and features screw terminals for easy connection.

This soft starter is suitable for applications requiring smooth acceleration of electric motors, reducing mechanical stress and electrical inrush current. It's commonly used in pumps, fans, compressors, and conveyor systems where soft starting is beneficial.

Stanlo Automation, a veteran-owned supplier of industrial automation surplus, offers this Siemens SIRIUS soft starter. Ensure your motor control applications are equipped with reliable components by sourcing from our inventory.

Technical specifications

Rated Current (standard)	29 A
Rated Power (standard at 690V)	30 kW
Voltage Range	400-690 V AC
Connection Type	Screw Terminals
Phase	3-Phase

Common applications

Pump control

Fan control

Compressor control

Conveyor systems

Motor soft starting

Compatible systems

3-Phase AC Motors

Also known as

SIRIUS Soft Starter Siemens Motor Starter

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RW5524-1HA16. Consult Siemens documentation for full compatibility details.

Technical note

Expert tip

This product is phased out; ensure availability of support and spare parts or plan for migration to the recommended successor, the 3RW5 series.

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Frequently asked questions

What is the successor to the Siemens 3RW4422-1BC46 SIRIUS soft starter?

The Siemens 3RW4422-1BC46 is a phased-out product. The preferred successor is the SIRIUS 3RW5524-1HA16, with the broader successor series being the SIRIUS 3RW5.