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Siemens SIRIUS 3RW4047-2BB05 S3 Soft Starter, 106A, 75kW

Siemens SIRIUS S3 Soft Starter 106A 75kW 400-600V AC

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ManufacturerSiemens

Part number3RW4047-2BB05

Series SIRIUS

Type S3 Soft Starter

Rated Current 106 A

Rated Power 75 kW (at 500V)

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S3 soft start 106A continuous current 75kW motor rating Spring-type terminals 400-600V AC main voltage 24V AC/DC control voltage

Product description

The Siemens 3RW4047-2BB05 is a SIRIUS S3 soft starter designed for smooth motor acceleration. It is rated for 106 A and 75 kW at 500 V, with a control voltage range of 400-600 V AC and 24 V AC/DC. This model features convenient spring-type terminals for quick and secure connections.

This soft starter is ideal for applications requiring controlled motor start-up to reduce mechanical stress and electrical inrush current. It is commonly used for pumps, fans, compressors, and conveyors in manufacturing, water treatment, and HVAC systems.

Stanlo Automation, a veteran-owned surplus distributor, provides the Siemens 3RW4047-2BB05. Rely on us for quality surplus automation parts to keep your systems running.

Technical specifications

Series	SIRIUS
Type	S3 Soft Starter
Rated Current	106 A
Rated Power	75 kW (at 500V)
Control Voltage	400-600 V AC, 24 V AC/DC
Terminals	Spring-type

Common applications

Pump control

Fan control

Compressor starting

Conveyor systems

Material handling

HVAC systems

Compatible systems

3-phase AC induction motors

Also known as

Siemens SIRIUS soft starter 3RW4047 soft starter Siemens S3 starter

Replaces / compatible with

This soft starter is part of the Siemens SIRIUS 3RW40 range. It is designed to provide controlled starting for medium-sized motors.

Technical note

Expert tip

The spring-type terminals on the 3RW4047-2BB05 offer vibration resistance and tool-free wiring, simplifying installation in demanding environments.

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Frequently asked questions

What is the maximum motor power this Siemens 3RW4047-2BB05 soft starter can control?

The Siemens 3RW4047-2BB05 soft starter can control a maximum motor power of 75 kW at a supply voltage of 500 V. It is rated for an S3 service, indicating its suitability for frequent starting duties.