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Siemens 3RW5055-2AB14 SIRIUS Soft Starter — 143A

Siemens 3RW5055-2AB14 SIRIUS Soft Starter

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ManufacturerSiemens

Part number3RW5055-2AB14

Voltage Rating 200-480 V AC

Rated Current 143 A

Control Voltage 110-250 V AC

Terminals Spring-loaded

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Veteran-owned

CAGE: 9NK75

Smooth motor starting Reduced inrush current Integrated bypass Analog output Spring-loaded terminals

Product description

The Siemens 3RW5055-2AB14 is a SIRIUS soft starter designed for smooth, controlled starting of three-phase motors. It operates within a voltage range of 200-480 V and can handle a motor current of up to 143 A. The control circuit operates on 110-250 V AC and features spring-loaded terminals for secure connections, along with an analog output for process feedback.

This soft starter is ideal for applications requiring reduced mechanical stress on machinery, lower inrush currents, and enhanced motor protection. It is commonly used in conveyor systems, pumps, fans, and other industrial machinery where gentle motor acceleration is critical to prevent damage and save energy.

Stanlo Automation, your trusted veteran-owned surplus parts distributor, offers the Siemens 3RW5055-2AB14 SIRIUS soft starter. Find reliable and cost-effective solutions for your motor control needs with us.

Technical specifications

Voltage Rating	200-480 V AC
Rated Current	143 A
Control Voltage	110-250 V AC
Terminals	Spring-loaded
Output	Analog Output

Common applications

Pump Control

Fan Control

Conveyor Systems

Machine Tools

Compressors

Compatible systems

Three-phase AC motors Siemens PLC systems Various control panels

Also known as

Siemens SIRIUS 3RW5 Soft Starter 3RW50 Soft Starter Siemens Motor Starter

Replaces / compatible with

This soft starter is designed to replace traditional direct-on-line or star-delta starters for improved motor performance and protection. It is compatible with Siemens SIRIUS 3RW5 series accessories.

Technical note

Expert tip

The analog output can be used to provide feedback on motor current or speed, enabling integration with SCADA or PLC systems for advanced process control.

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Frequently asked questions

What is the control voltage for the Siemens 3RW5055-2AB14 SIRIUS soft starter?

The Siemens 3RW5055-2AB14 SIRIUS soft starter has a control voltage rating of 110-250 V AC. This allows for flexible integration into various control systems.