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Siemens 3TX7402-3T

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£23.34 (ex. VAT)

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Marvo Stock ID MV-6MKG
HS Code 85363090
SKU 3TX7402-3T
Condition New unboxed
Warranty 12 months
EAN 4011209055483

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Specification & Description

Specification Description
Part Number 3TX7402-3T
Alternative Part Number 3TX74023T
Manufacturer Siemens
Product Designation Surge Suppressor
Design RC Element with Cable Spacer
Voltage Type AC/DC
Control Supply Voltage Frequency 50 Hz (1 rated value), 60 Hz (2 rated value)
Control Supply Voltage 1 at DC 150 to 250 V
Control Supply Voltage 1 at AC 127 to 240 V at 50 Hz, 127 to 240 V at 60 Hz
Ambient Temperature Operation -25 to +55 °C
Ambient Temperature Storage -40 to +80 °C
Certificates/Approvals CE, UL, CSA
Suitable For Mounting to coil terminal for contactors size S0-S2

The Siemens 3TX7402-3T is a robust surge suppressor component designed to enhance the longevity and reliability of your electrical systems. This RC element is engineered to be mounted directly to the coil terminal of contactors ranging from sizes S0 to S2. It operates effectively across a wide voltage range, accommodating 127-240 V AC and 150-250 V DC, making it a versatile choice for various industrial applications.

Crafted to mitigate the effects of voltage spikes and electrical transients, the 3TX7402-3T ensures that sensitive control circuits are shielded from potential damage. Its integration into your system contributes to the maintenance of optimal performance levels and helps prevent costly downtime due to electrical disturbances.

The surge suppressor is also characterised by its ease of installation, thanks to its thoughtful design which includes a cable spacer for secure and orderly wiring. With certifications such as CE, UL, and CSA, this component meets rigorous standards for quality and reliability.

Whether you're looking to safeguard new installations or upgrade existing setups, the Siemens 3TX7402-3T offers a dependable solution to protect your electrical investments. Its technical proficiency, combined with a straightforward implementation, makes it a valuable addition to any industrial control system.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Frequently Asked Questions

What is the purpose of this surge suppressor?

The surge suppressor is designed to protect electrical equipment from voltage spikes by limiting the voltage supplied to an electric device by either blocking or shorting to ground any unwanted voltages above a safe threshold.

Can this surge suppressor be used with both AC and DC control circuits?

Yes, this surge suppressor is suitable for use with control supply voltages that are either AC or DC, within the specified voltage range.

What are the voltage specifications for this surge suppressor?

The surge suppressor can handle control supply voltages of 127-240 V AC at 50/60 Hz or 150-250 V DC.

What are the operating temperature limits for this surge suppressor?

The operating temperature range for this surge suppressor is from -25°C to +55°C, and it can be stored at temperatures ranging from -40°C to +80°C.

What certifications does this surge suppressor hold?

This surge suppressor has received CE, UL, and CSA certifications, indicating its compliance with the respective standards and regulations.

How is this surge suppressor installed?

The surge suppressor is designed for mounting directly to the coil terminal of contactors, specifically for sizes S0 to S2.

What is the design of the surge suppressor?

The design of the surge suppressor includes RC elements, which are used to suppress the surges in electrical circuits.

Is there any specific maintenance required for this surge suppressor?

Under normal operating conditions, the surge suppressor does not require maintenance. However, it should be inspected periodically for signs of wear or damage.

What type of equipment is this surge suppressor typically used with?

This surge suppressor is typically used with contactors and relays in industrial control systems to protect against transient voltage spikes.

Are there any special considerations for disposing of this surge suppressor?

When disposing of the surge suppressor, it should be done in accordance with local regulations and recycling programs for electronic components.

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Part conditions explained


We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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