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Siemens 3RW5055-2AB04 SIRIUS Soft Starter - 143A, 200-480V

Siemens 3RW5055-2AB04 SIRIUS Soft Starter, 143A, 200-480V.

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ManufacturerSiemens

Part number3RW5055-2AB04

Voltage 200-480V AC

Current 143A

Control Voltage 24V AC/DC

Terminals Spring-loaded

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Soft starter functionality 200-480V AC operation 143A current rating Spring-loaded terminals Analog output 24V AC/DC control

Product description

The Siemens 3RW5055-2AB04 is a SIRIUS soft starter from the newer 3RW5 series, designed for smooth and controlled motor starts. It operates within a voltage range of 200-480 V AC, with a rated current of 143 A. This unit features 24 V AC/DC control voltage, spring-loaded terminals for easy connection, and an integrated analog output for process feedback.

This soft starter is suitable for a wide array of industrial applications, including pump controls, fan systems, compressors, and conveyor belts, where minimizing mechanical stress and electrical inrush current is essential. Its versatility makes it applicable in sectors like water treatment, HVAC, food and beverage, and general manufacturing.

Stanlo Automation, a veteran-owned supplier of industrial automation and surplus parts, offers the Siemens 3RW5055-2AB04. We provide reliable sourcing for current and legacy components, ensuring your operations have access to the parts they need.

Technical specifications

Voltage	200-480V AC
Current	143A
Control Voltage	24V AC/DC
Terminals	Spring-loaded
Output	Analog
Series	SIRIUS 3RW50

Common applications

Pump control

Fan systems

Compressor control

Conveyor belts

Industrial machinery

HVAC systems

Compatible systems

Compatible with Siemens SIRIUS motor control systems. Suitable for various automation applications requiring soft motor starting.

Also known as

Siemens SIRIUS 3RW5055-2AB04 3RW50552AB04 Soft Starter 143A

Replaces / compatible with

This is a current model in the SIRIUS 3RW5 series, designed as a modern replacement and upgrade for earlier soft starter technologies. Refer to Siemens documentation for specific cross-reference.

Technical note

Expert tip

The spring-loaded terminals facilitate quick and tool-less wiring, ideal for panel builders and maintenance teams seeking efficiency.

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Frequently asked questions

What are the key electrical specifications for the Siemens 3RW5055-2AB04 soft starter?

The Siemens 3RW5055-2AB04 soft starter operates on 200-480V AC power and has a current rating of 143A. It uses 24V AC/DC for control voltage and includes an analog output.