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Siemens 3RW4046-2BB05 SIRIUS Soft Starter - 80A, 55kW

Siemens 3RW4046-2BB05 SIRIUS soft starter, 80A, 55kW, 400-600V AC.

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ManufacturerSiemens

Part number3RW4046-2BB05

Rated operational current 80 A

Motor power 55 kW at 500 V

Input voltage 400-600 V AC

Control voltage 24 V AC/DC

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Smooth motor start Reduced mechanical stress Spring-type terminals 400-600V AC main voltage 24V AC/DC control voltage

Product description

The Siemens 3RW4046-2BB05 is a SIRIUS soft starter designed for smooth motor acceleration. It features a rated operational current of 80 A and supports a motor power of 55 kW at 500 V. The unit operates on a voltage range of 400-600 V AC and is controlled by a 24 V AC/DC supply. It utilizes spring-type terminals for secure connections and is rated for ambient temperatures up to 40 °C.

This soft starter is ideal for applications requiring reduced mechanical stress on machinery, such as conveyor systems, pumps, and fans. It helps to prolong the life of motors and connected equipment by minimizing starting torque and current.

Stanlo Automation, a veteran-owned business, offers reliable surplus industrial parts. Source your Siemens 3RW4046-2BB05 with confidence from a trusted distributor.

Technical specifications

Rated operational current	80 A
Motor power	55 kW at 500 V
Input voltage	400-600 V AC
Control voltage	24 V AC/DC
Terminals	Spring-type
Ambient temperature	40 °C

Common applications

Motor control

Pump systems

Fan applications

Conveyor belts

Industrial machinery

Compatible systems

Compatible with standard industrial motor control systems.

Also known as

Siemens SIRIUS 3RW40 S3 Soft Starter

Replaces / compatible with

This soft starter is designed to replace direct-on-line starters for applications requiring controlled acceleration.

Technical note

Expert tip

Ensure correct wiring of control and power circuits to prevent damage during initial startup.

What happens next?

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Frequently asked questions

What is the maximum motor power for the Siemens 3RW4046-2BB05 soft starter?

The Siemens 3RW4046-2BB05 soft starter is rated for a maximum motor power of 55 kW when operating at 500 V. This ensures efficient and controlled starting for high-power motors.