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Siemens 3RW4047-1TB05 SIRIUS Soft Starter

Siemens 3RW4047-1TB05 SIRIUS soft starter with thermistor motor protection.

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ManufacturerSiemens

Part number3RW4047-1TB05

Rated operational current (le) 106 A

Rated power (P_rated) 75 kW at 500 V

Voltage 400-600 V AC

Control Voltage 24 V AC/DC

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Soft start functionality Integrated motor protection High operational current Wide voltage range Screw terminal connections Thermistor input

Product description

The Siemens 3RW4047-1TB05 is a SIRIUS soft starter designed for smooth and controlled motor starting. This unit is rated for 106 Amps and 75 kW at 500 Volts, operating on a 400-600V AC power supply, with a 24V AC/DC control voltage. It features screw terminals for easy and secure connections and includes integrated thermistor motor protection to safeguard against overheating.

This soft starter is ideal for applications requiring reduced mechanical stress on machinery and electrical systems, such as in conveyor systems, pump controls, and fan applications. It helps to minimize inrush currents, extending the life of both the motor and the connected equipment across various industrial sectors.

As a veteran-owned surplus parts distributor, Stanlo Automation offers this Siemens 3RW4047-1TB05 with the assurance of quality and reliability. We understand the critical nature of industrial automation components and strive to provide cost-effective solutions for your MRO needs, ensuring your operations run smoothly.

Technical specifications

Rated operational current (le)	106 A
Rated power (P_rated)	75 kW at 500 V
Voltage	400-600 V AC
Control Voltage	24 V AC/DC
Connection Type	Screw terminals
Protection	Thermistor motor protection
Ambient Temperature	40 °C

Common applications

Motor Starting

Pump Control

Fan Control

Conveyor Systems

Compressor Control

Industrial Machinery

Compatible systems

Siemens SIRIUS motor protection relays Industrial control panels Various motor types

Also known as

Siemens SIRIUS 3RW40 Soft Starter 3RW40 Series Soft Starter

Replaces / compatible with

Compatible with Siemens SIRIUS motor starter components.

Technical note

Expert tip

Ensure proper wiring of the thermistor protection circuit to prevent motor damage due to overheating.

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Frequently asked questions

What is the power rating of the Siemens 3RW4047-1TB05 soft starter?

The Siemens 3RW4047-1TB05 soft starter is rated for 75 kW at 500 Volts. This ensures it can handle significant motor loads while providing controlled acceleration.