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Siemens 3RW4046-2BB04 SIRIUS Soft Starter - 80A, 45kW

Siemens 3RW4046-2BB04 SIRIUS Soft Starter

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ManufacturerSiemens

Part number3RW4046-2BB04

Series SIRIUS S3

Rated Current 80 A

Motor Power 45 kW (at 400V)

Control Voltage 200-480 V AC

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Veteran-owned

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Smooth motor starting 80A rated current 45kW power handling Wide control voltage range Spring-type terminals SIRIUS design

Product description

The Siemens 3RW4046-2BB04 is a SIRIUS soft starter (S3 series) designed to provide smooth, controlled starting for three-phase motors. It has a rated current of 80 A and can handle a motor power of up to 45 kW at 400 V. The device operates with a control voltage range of 200-480 V AC and includes spring-type terminals for 24 V AC/DC control power.

This soft starter is ideal for applications where mechanical stress on machinery needs to be minimized during motor startup, such as in conveyor systems, pumps, fans, and compressors. Its S3 rating ensures reliable performance under demanding conditions at an ambient temperature of 40°C.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RW4046-2BB04 SIRIUS soft starter. We provide reliable and cost-effective solutions to keep your industrial motor control systems operational.

Technical specifications

Series	SIRIUS S3
Rated Current	80 A
Motor Power	45 kW (at 400V)
Control Voltage	200-480 V AC
Control Terminals	24 V AC/DC
Ambient Temp	40°C
Terminals	Spring-type

Common applications

Motor Control

Conveyor Systems

Pumps

Fans

Compressors

Industrial Machinery

Compatible systems

Three-phase motors Siemens SIRIUS motor control components

Also known as

Siemens S3 Soft Starter 3RW40462BB04

Replaces / compatible with

This soft starter is designed to replace direct-on-line starters and star-delta starters for smoother motor acceleration and reduced mechanical stress.

Technical note

Expert tip

Ensure proper wire sizing and connection to the spring-type terminals for reliable operation of the 24V AC/DC control circuit.

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Frequently asked questions

What is the maximum motor power rating for the Siemens 3RW4046-2BB04 soft starter?

The Siemens 3RW4046-2BB04 SIRIUS soft starter is rated for a maximum motor power of 45 kW when operating at 400 V. It also handles a rated current of 80 A.