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Siemens 3TX4490-3J Varistor Surge Suppressor 127-240V AC/150-250V DC

Siemens 3TX4490-3J Varistor Surge Suppressor for 127-240V AC / 150-250V DC.

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ManufacturerSiemens

Part number3TX4490-3J

Type Surge Suppressor (Varistor)

Voltage 127-240V AC / 150-250V DC

Mounting Plug-in

Compatibility Siemens contactors (with/without aux switch blocks)

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Varistor-based surge protection Higher AC/DC voltage range Easy plug-in installation Protects contactors and control circuits Enhances equipment reliability

Product description

The Siemens 3TX4490-3J is a plug-in varistor surge suppressor designed for higher voltage AC and DC systems, operating within the ranges of 127-240V AC and 150-250V DC. It easily attaches to Siemens contactors, with or without auxiliary switch blocks, providing effective protection against voltage transients.

This surge suppressor is crucial for safeguarding industrial electrical equipment, particularly contactors, from damaging overvoltages. Its application is widespread in motor control, automation systems, and any environment where electrical transients pose a risk to component longevity and system reliability.

Stanlo Automation, your trusted veteran-owned surplus industrial parts supplier, offers the Siemens 3TX4490-3J. We ensure you have access to quality surplus components to keep your automation infrastructure running efficiently.

Technical specifications

Type	Surge Suppressor (Varistor)
Voltage	127-240V AC / 150-250V DC
Mounting	Plug-in
Compatibility	Siemens contactors (with/without aux switch blocks)

Common applications

Motor control systems

Industrial automation

Control panels

Power distribution

High voltage applications

Electrical protection

Compatible systems

Siemens contactors (with or without auxiliary switch blocks)

Also known as

Siemens 3TX4490-3J

Replaces / compatible with

Designed for use with Siemens contactors to provide protection against voltage surges.

Technical note

Expert tip

This plug-in varistor effectively clamps transient overvoltages, protecting the coil and auxiliary contacts of Siemens contactors.

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Frequently asked questions

What is the voltage rating for the Siemens 3TX4490-3J surge suppressor?

The Siemens 3TX4490-3J surge suppressor is rated for 127-240V AC and 150-250V DC. This makes it suitable for a variety of industrial control systems that operate within these voltage parameters.