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Siemens SIRIUS 3RW4046-2BB15 Soft Starter S3, 80A

Siemens SIRIUS 3RW4046-2BB15 S3 soft starter for motor control.

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ManufacturerSiemens

Part number3RW4046-2BB15

Series SIRIUS S3

Rated Operational Current 80 A

Motor Power 55 kW at 500 V

Main Circuit Voltage 400-600 V AC

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Veteran-owned

CAGE: 9NK75

Smooth motor acceleration/deceleration S3 rating for heavy-duty use Overload protection Integrated bypass for reduced heat Spring-type terminals for easy wiring

Product description

The Siemens 3RW4046-2BB15 is a SIRIUS soft starter, specifically an S3 rated device, designed to provide smooth acceleration and deceleration for three-phase induction motors. It has a rated operational current of 80 A and is suitable for motors up to 55 kW at 500 V. The unit operates with a main circuit voltage range of 400-600 V AC and a control circuit voltage of 110-230 V AC/DC.

This soft starter is ideal for applications where motor starting torque and current need to be controlled to prevent mechanical stress and electrical grid disturbances. Typical applications include pumps, fans, compressors, and conveyor systems in various industrial sectors such as manufacturing, water treatment, and building services.

Stanlo Automation, a veteran-owned surplus parts distributor, proudly offers the Siemens 3RW4046-2BB15. Ensure reliable motor control for your systems with this high-quality soft starter. We provide readily available surplus components to keep your operations running efficiently.

Technical specifications

Series	SIRIUS S3
Rated Operational Current	80 A
Motor Power	55 kW at 500 V
Main Circuit Voltage	400-600 V AC
Control Circuit Voltage	110-230 V AC/DC
Ambient Temperature	40 °C
Terminals	Spring-type

Common applications

Pump control

Fan control

Conveyor systems

Compressor control

Industrial machinery

Compatible systems

Three-phase induction motors Siemens S7 PLCs Industrial control panels

Also known as

Siemens Soft Starter S3 SIRIUS 80A Soft Starter 3RW40 Soft Starter

Replaces / compatible with

Replaces direct-on-line starters where soft start functionality is required. Compatible with Siemens SIRIUS motor control accessories.

Technical note

Expert tip

Ensure the ambient temperature does not exceed 40°C for continuous operation at rated current. Use spring-type terminals for secure and vibration-resistant connections.

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Frequently asked questions

What is the maximum motor power that the Siemens 3RW4046-2BB15 can control?

The Siemens 3RW4046-2BB15 soft starter is rated to control motors up to 55 kW at a voltage of 500 V AC. It has a rated operational current of 80 A and is designed for use within a main circuit voltage range of 400-600 V AC.