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Siemens SIRIUS 3RW3046-2BB04 Soft Starter - 80A, 45kW

Siemens SIRIUS 3RW3046-2BB04 Soft Starter

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ManufacturerSiemens

Part number3RW3046-2BB04

Rated Operational Current 80 A

Motor Rating 45 kW at 400 V

Control Voltage 200-480 V AC

Auxiliary Supply 24 V AC/DC

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Veteran-owned

CAGE: 9NK75

Smooth Motor Acceleration Reduced Inrush Current Motor Protection Features Spring-Type Terminals Compact Design SIRIUS Series

Product description

The Siemens SIRIUS 3RW3046-2BB04 is a compact soft starter designed to provide smooth acceleration for three-phase induction motors. It offers a rated operational current of 80 A and supports motor ratings up to 45 kW at 400 V. The control voltage range is 200-480 V AC, with an auxiliary supply of 24 V AC/DC. It features easy-to-use spring-type terminals for quick and reliable connections, reducing installation time and effort.

This soft starter is ideal for applications where controlled motor start-up is required to reduce mechanical stress on machinery, limit inrush currents, and improve power factor. Common uses include conveyor systems, pumps, fans, and other machinery where a soft start prevents jolts and protects equipment.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 3RW3046-2BB04. We provide quality components to help you maintain efficient and reliable motor control in your facility.

Technical specifications

Rated Operational Current	80 A
Motor Rating	45 kW at 400 V
Control Voltage	200-480 V AC
Auxiliary Supply	24 V AC/DC
Terminals	Spring-type
Protection Class	IP20

Common applications

Conveyor Systems

Pumps

Fans

Compressors

Machine Tools

Material Handling

Compatible systems

Three-phase induction motors Control cabinets Industrial automation panels

Also known as

Siemens Soft Starter 80A SIRIUS 3RW30 Soft Starter 3RW3046 Soft Starter

Replaces / compatible with

Replaces direct-on-line starters and older soft starter models, offering improved control and protection for induction motors.

Technical note

Expert tip

Ensure proper heat dissipation by maintaining adequate spacing between units when installing multiple soft starters in a control cabinet.

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Frequently asked questions

What is the control voltage range for the Siemens SIRIUS 3RW3046-2BB04 soft starter?

The Siemens SIRIUS 3RW3046-2BB04 soft starter has a control voltage range of 200-480 V AC. It also utilizes a 24 V AC/DC auxiliary supply for its internal functions.