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Siemens SIRIUS 3RW40 Soft Starter S2 45A

Siemens SIRIUS 3RW40 soft starter, S2 rated, 45A, 30kW, 400-600V AC.

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ManufacturerSiemens

Part number3RW4036-2BB05

Part Number 3RW4036-2BB05

Manufacturer Siemens

Series SIRIUS

Type Soft Starter S2

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SIRIUS Soft Starter S2 Rating 45A Current Rating 30kW Power Capacity 400-600V AC Main Voltage 24V AC/DC Control Voltage Spring-Type Terminals

Product description

The Siemens 3RW4036-2BB05 is part of the SIRIUS range of soft starters, specifically an S2-rated device. It is designed to provide smooth starting for motors, reducing electrical and mechanical stress. This soft starter has a rated current of 45A and is suitable for motor applications up to 30kW at 500V. The control voltage is 24V AC/DC, and the main power circuit operates within a voltage range of 400-600V AC.

This soft starter is ideal for applications requiring controlled motor acceleration, such as pumps, fans, and conveyor systems, where standard direct-on-line starting could cause issues. The S2 rating indicates its suitability for applications with moderate starting frequency and duration. It features spring-type terminals for secure and easy connections.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this Siemens SIRIUS soft starter. We provide quality industrial automation components. Choose Stanlo for your motor control needs and benefit from reliable products and expert service.

Technical specifications

Part Number	3RW4036-2BB05
Manufacturer	Siemens
Series	SIRIUS
Type	Soft Starter S2
Rated Current	45 A
Rated Power	30 kW (at 500V)
Main Voltage	400-600 V AC
Control Voltage	24 V AC/DC
Terminals	Spring-type

Common applications

Motor Starting

Pump Control

Fan Control

Conveyor Systems

Industrial Machinery

Soft Motor Acceleration

Compatible systems

AC induction motors 400-600V AC power systems 24V AC/DC control circuits

Also known as

Siemens SIRIUS Soft Starter 45A 3RW4036 Soft Starter Siemens S2 Starter 30kW Motor Starter

Replaces / compatible with

This SIRIUS 3RW40 soft starter is designed to provide controlled motor starting and can replace direct-on-line starters or older soft starter models in suitable applications.

Technical note

Expert tip

The spring-type terminals offer a vibration-resistant connection, ensuring reliable electrical contact in demanding industrial environments without the need for specialized tools.

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Frequently asked questions

What is the control voltage for the Siemens 3RW4036-2BB05 SIRIUS soft starter?

The Siemens 3RW4036-2BB05 SIRIUS soft starter operates with a control voltage of 24V AC/DC. This allows for flexible integration into control systems that utilize standard low-voltage control circuits.