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Siemens SIRIUS 3RW4027-2BB15 Soft Starter - S0, 32A

Siemens SIRIUS 3RW4027-2BB15 Soft Starter

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ManufacturerSiemens

Part number3RW4027-2BB15

Size S0

Rated Current 32A

Max Motor Power 18.5 kW @ 500V

Voltage (Main) 400-600V AC

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Veteran-owned

CAGE: 9NK75

Smooth Motor Acceleration Reduces Inrush Current Extends Equipment Life Spring-Type Terminals SIRIUS Design

Product description

The Siemens SIRIUS 3RW4027-2BB15 is a size S0 soft starter designed for smooth acceleration of three-phase asynchronous motors. It features a rated current of 32A and supports motor powers up to 18.5 kW at 500V. This soft starter operates within a voltage range of 400-600V AC for the main circuit and 110-230V AC/DC for the control circuit. It is equipped with convenient spring-type terminals for quick and secure connections.

This SIRIUS soft starter is ideal for applications where reduced mechanical stress during motor startup is desired. It's commonly used in pumps, fans, compressors, conveyors, and other machinery to extend equipment life and reduce power system disturbances by limiting inrush current.

Stanlo Automation, a veteran-owned supplier of industrial surplus parts, offers the Siemens SIRIUS 3RW4027-2BB15 soft starter. We provide cost-effective solutions for your automation needs, ensuring reliable components are accessible for your maintenance and project requirements.

Technical specifications

Size	S0
Rated Current	32A
Max Motor Power	18.5 kW @ 500V
Voltage (Main)	400-600V AC
Voltage (Control)	110-230V AC/DC
Terminals	Spring-type

Common applications

Pump Control

Fan Control

Compressor Starting

Conveyor Systems

Industrial Machinery

Motor Protection

Compatible systems

Three-phase asynchronous motors Control systems with 110-230V AC/DC control signals

Also known as

Siemens 3RW4027 Soft Starter SIRIUS 32A Soft Starter Siemens Motor Starter 3RW4027-2BB15 Motor Controller

Replaces / compatible with

This soft starter is designed to replace direct-on-line starters where reduced mechanical stress and electrical inrush are needed. It is part of the extensive SIRIUS modular system.

Technical note

Expert tip

Ensure the control voltage is correctly applied (110-230V AC/DC) to properly engage the soft starter's acceleration and deceleration functions.

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Frequently asked questions

What is the maximum motor power for the Siemens 3RW4027-2BB15 soft starter at 400V?

The Siemens SIRIUS 3RW4027-2BB15 soft starter (size S0) is rated for a maximum motor power of 18.5 kW at 500V. At 400V, the maximum motor power is typically around 11 kW.