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Siemens SIRIUS Soft Starter (3RW3034-1AB04)

Siemens SIRIUS soft starter, Size S2, 32A, 15kW.

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ManufacturerSiemens

Part number3RW3034-1AB04

Type Soft Starter

Series SIRIUS

Size S2

Rated Current 32A

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Smooth motor start Reduced starting current Prevents mechanical stress Size S2 Screw terminal connections 24V UC control input

Product description

The Siemens SIRIUS soft starter, model 3RW3034-1AB04, is a Size S2 device rated for 32A and 15kW at 400V. It operates with a control voltage range of 200-460V AC (UC) and features a 24V UC control input. This soft starter utilizes screw connections for reliable electrical termination.

Designed to reduce starting torque and current in AC motors, this soft starter is essential for applications where smooth motor acceleration is required, such as conveyor systems, pumps, and fans. It helps to prevent mechanical stress and electrical surges during startup.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this Siemens SIRIUS soft starter. Source your industrial automation components from Stanlo and benefit from our commitment to quality and customer service.

Technical specifications

Type	Soft Starter
Series	SIRIUS
Size	S2
Rated Current	32A
Rated Power	15kW @ 400V
Control Voltage	200-460V AC (UC)
Control Input	24V UC
Connection	Screw

Common applications

Conveyor Systems

Pump Control

Fan Control

Compressors

Machine Tools

HVAC Systems

Compatible systems

AC Induction Motors Siemens S7 PLCs Industrial control panels

Also known as

Siemens 3RW30 SIRIUS Motor Starter Soft Starter S2

Replaces / compatible with

This soft starter is designed to provide controlled acceleration for AC motors, replacing direct-on-line starters to reduce mechanical and electrical stress.

Technical note

Expert tip

Always ensure the soft starter's rated current and power match the motor's requirements to prevent overheating and premature failure.

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Frequently asked questions

What are the key electrical specifications for the Siemens SIRIUS soft starter 3RW3034-1AB04?

The Siemens SIRIUS soft starter (3RW3034-1AB04) is a Size S2 device rated for 32A and 15kW at 400V, with a control voltage range of 200-460V AC (UC) and a 24V UC control input.