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Siemens 3TX4490-3U RC Surge Suppressor (240-400V AC)

Siemens 3TX4490-3U RC surge suppressor for 240-400V AC contactors.

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ManufacturerSiemens

Part number3TX4490-3U

Type RC Element Surge Suppressor

Voltage Range 240-400 V AC

Compatibility Siemens Contactors (with/without auxiliary switch blocks)

Mounting Plug-on

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RC element surge suppression For 240-400V AC Plug-on design for contactors Protects against voltage spikes Enhances system reliability

Product description

The Siemens 3TX4490-3U is an RC element surge suppressor designed to protect control circuits from voltage spikes. It is rated for AC voltages between 240V and 400V and is intended for plug-on application onto Siemens contactors, compatible with units both with and without auxiliary switch blocks.

This surge suppressor helps to mitigate electrical noise and transient overvoltages that can damage sensitive control components or cause unpredictable system behavior. It is essential for enhancing the reliability and lifespan of control systems, particularly in environments with electrical disturbances, such as industrial settings with heavy machinery.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3TX4490-3U. We provide tested, quality components to ensure the integrity of your electrical systems. Get your surge protection solutions from Stanlo.

Technical specifications

Type	RC Element Surge Suppressor
Voltage Range	240-400 V AC
Compatibility	Siemens Contactors (with/without auxiliary switch blocks)
Mounting	Plug-on

Common applications

Motor control circuits

Industrial control panels

Automation systems

Machine control

Electrical cabinets

Compatible systems

Siemens Contactors (with plug-in accessory slots)

Also known as

Siemens RC suppressor 3TX4490-3U

Replaces / compatible with

Compatible with Siemens contactors that have plug-in bases for accessories.

Technical note

Expert tip

This RC suppressor is designed to be easily plugged onto compatible Siemens contactors, simplifying installation and providing localized surge protection.

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Frequently asked questions

What is the voltage range for the Siemens 3TX4490-3U RC surge suppressor?

The Siemens 3TX4490-3U RC surge suppressor is designed for AC control circuits operating within a voltage range of 240V to 400V. This allows it to protect contactors and associated control electronics from damaging voltage transients.