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Siemens SIRIUS 3RW40 Soft Starter - 45A, 30kW, 400-600V AC

Siemens SIRIUS S2 Soft Starter with Motor Protection

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ManufacturerSiemens

Part number3RW4036-1TB05

Type SIRIUS S2 Soft Starter

Rated Current 45 A

Power Rating 30 kW / 500 V

Operating Voltage 400-600 V AC

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Veteran-owned

CAGE: 9NK75

Smooth Motor Acceleration Integrated Thermistor Protection Wide Operating Voltage Compact Design 24V AC/DC Control

Product description

The Siemens 3RW4036-1TB05 is a SIRIUS S2 soft starter designed for controlled motor startup. It is rated for a current of 45A and a power of 30kW at 500V. The operating voltage range is 400-600V AC, with a control voltage of 24V AC/DC. This model includes integrated thermistor motor protection for enhanced safety and longevity of the motor.

This soft starter is essential for applications where smooth acceleration of electric motors is required, reducing mechanical stress on machinery and electrical stress on the power supply. It's commonly used in pumps, fans, compressors, and conveyor systems to prevent sudden jolts during startup.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 3RW4036-1TB05. Equip your facility with reliable motor control solutions from our stocked inventory.

Technical specifications

Type	SIRIUS S2 Soft Starter
Rated Current	45 A
Power Rating	30 kW / 500 V
Operating Voltage	400-600 V AC
Control Voltage	24 V AC/DC
Protection	Thermistor Motor Protection
Terminals	Screw

Common applications

Pump Control

Fan Control

Conveyor Systems

Compressor Starters

Industrial Machinery

Compatible systems

Various AC Induction Motors PLC control systems Industrial power distribution

Also known as

SIRIUS Soft Starter Siemens Motor Starter 3RW40 Series Soft Ramp Starter

Replaces / compatible with

This soft starter is designed to provide controlled motor starting, reducing the mechanical and electrical stress associated with direct-on-line (DOL) starting.

Technical note

Expert tip

Ensure the motor's thermistor leads are correctly wired to the designated terminals for effective thermal protection.

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Frequently asked questions

What type of motor protection is included with the Siemens 3RW4036-1TB05 soft starter?

The Siemens 3RW4036-1TB05 SIRIUS S2 soft starter includes integrated thermistor motor protection. This feature helps prevent motor overheating by monitoring the motor's temperature via built-in thermistor sensors.