DEHNventil: the original. Half the size, all the power.

Future-proof.

The new DEHNventil effortlessly replaces equivalent older devices, thus providing the maximum guarantee of future compatibility. Additionally, all DEHNventil models are now equipped with a remote signalling contact, which simplifies product selection significantly.

Find the right DEHNventil

Space-saving.

DEHNventil is now only half as big as its predecessor: with a space requirement of 4 standard DIN modules and with the option of lateral installation, you stay flexible. And additional space is available for new requirements, future components and easier assembly of components.

Powerful.

The multipole, modular, type 1+2+3 combined arrester protects installations from partial lightning currents and surges in just one single module in a compact design and impresses with a follow current extinguishing capability of 100 kArms.

Reliable.

The installed RAC spark gap responds extremely quickly and impresses with minimal residual energy. This means maximum safety and optimum preservation of downstream electronic installations and systems.

To RAC technology

Compact technology for your requirements

For applications in an industrial environment or in the case of higher technical requirements, you are set up best with DEHNventil. Learn more about the application possibilities.

Industrial plants

In the industrial sector, with high transformer/short-circuit currents, compact, powerful surge protection is necessary for the reliable availability of state-of-the-art plant technology. Prevent failures with the right surge protection.

Learn more

Hospitals

Where state-of-the-art technology saves lives on a daily basis, the most stringent requirements for surge protection must be met. Play it safe and opt for the market leader in powerful spark gap technology.   

Learn more

Data centres

Data centres and therefore the constant availability of data are cornerstones of daily life – without them, not much else works. An important component of a comprehensive protection concept is powerful lightning and surge protection.

Learn more

Logistics centre

Same-day delivery in the age of Logistics 4.0 – nowadays, ordered goods are expected to be delivered within the shortest time. Prevent stoppages with the right surge protection.

Learn more

Gas compression systems

Ensure gas transport, secure supply, protect installations and people: with a comprehensive lightning and surge protection concept, you are on the safe side.

Learn more

The digital LIGHTNING PROTECTION GUIDE

For the subjects of lightning and surge protection, the LIGHTNING PROTECTION GUIDE is the definitive standard reference. Standards, regulations, project design fundamentals, assembly examples and protection suggestions – here you will find detailed information on a wide variety of applications.

Learn more

1983
DEHNventil VGA

2000
DEHNventil

2006
DEHNventil M

2021
DEHNventil M2

Smaller, stronger, more reliable. The original since 1983.

DEHN has been leading the way for 111 years. We develop products that set new standards. The new DEHNventil is now only half as big as its predecessor. At the size of just 4 standard DIN modules and integrated remote signalling contact, the fourth generation of the type1+2+3 combined arrester provides full power and maximum protective effect at half the size.

Low cost for full power

More space in the switchgear cabinet

No more cramming in the switchgear cabinet: with its compact design, the DEHNventil leaves enough space for new components. More space also makes the installation of the DEHNventil itself and adjacent components easier.

Flexible installation point

Use the space gains optimally: the small design also enables lateral installation – this makes 0.5 m cable lengths easy to keep to.

Quick module replacement

The spring-supported ejection mechanism allows for the entire plug-in block to be replaced quickly and effortlessly. A real time benefit during module replacement!

Less maintenance effort

After replacing the single module, all modes of protection directly have full capability again. And thanks to the integrated remote signalling contact, maintenance operations can be planned better and more effectively with 24/7 monitoring.

Lower costs

With the type 1+2+3 combined arrester, costs for other devices and their installation are done away with – a smaller switchgear cabinet often also suffices as a result. The extra space in turn saves on transport and storage costs, since more products find space on the pallet.

Easy choice

With the integrated remote signalling contact in all models, you will easily find the right DEHNventil for your applications. The all-in-one solution protects systems and installations within a protection range of 10 m of cable length.

Switch now to the new generation

Choose the old part number of your device here and very easily find the new DEHNventil that matches your application.

5 models. For every use.

  • Width:
    4 standard DIN modules

  • Easy module replacement
    (single module)

  • Follow current extinguishing capability:
    up to 100 kArms

  • Including remote
    signalling contact

DEHNventil M2 TT 255 FM
Replaces part number 951310/951315

  • Width:
    4 standard DIN modules

  • Easy module replacement
    (single module)

  • Follow current extinguishing capability:
    up to 100 kArms

  • Including remote
    signalling contact

DEHNventil M2 TNS 255 FM
Replaces part number 951400/951405

  • Width:
    4 standard DIN modules

  • Easy module replacement
    (single module)

  • Follow current extinguishing capability:
    up to 100 kArms

  • Including remote
    signalling contact

DEHNventil M2 TNC 255 FM
Replaces part number 951300/951305

  • Width:
    2 standard DIN modules

  • Easy module replacement
    (single module)

  • Follow current extinguishing capability:
    up to 100 kArms

  • Including remote
    signalling contact

DEHNventil M2 TT 2P 255 FM
Replaces part number 951110/951115

  • Width:
    2 standard DIN modules

  • Easy module replacement
    (single module)

  • Follow current extinguishing capability:
    up to 100 kArms

  • Including remote
    signalling contact

DEHNventil M2 TN 255 FM
Replaces part number 951200/951205

Do you have any other questions?

We are here for you. Write to us, call us up or very simply arrange a time and date on which we can call you back. We are looking forward to hearing from you.

international@dehn.de +49 9181 906 1462

Secure information technology

The universal combined arrester BLITZDUCTORconnect: reliable protection for measuring and control equipment and process automation in an industrial environment.

Learn more 

Webinars and e-learning

Make use of the free offers from the DEHNacademy and find the right seminar for you for all subject areas.

To the DEHNacademy 

Digital LIGHTNING PROTECTION GUIDE

The standard reference is available to you in digital form right now – always up to date, available on the go and with many new functions.

To the LIGHTNING PROTECTION GUIDE 
back to top

Cookie Settings

We use cookies so that we can offer you the best possible website experience. This includes cookies which are necessary for the operation of the website and to manage our corporate commercial objectives, as well as other cookies which are used solely for anonymous statistical purposes, for more comfortable website settings, or for the display of personalised content. You are free to decide which categories you would like to permit. Please note that depending on the settings you choose, the full functionality of the website may no longer be available. Further information can be found in our Privacy Policy.
If you have given your consent for us to set cookies, you can revoke it at any time by clicking on the “Change Cookie Setting” link in the footer of the page.

  • Show details Hide details
    Necessary

    These cookies are necessary to run the core functionalities of this website, e.g. security related functions. With these cookies we can also detect if you want to stay logged into your profile to provide you with fast access to our services after revisiting our website.

    Statistics & Marketing

    In order to continuously improve our website, we anonymously track data for statistical and analytical purposes. With these cookies we can , for example, track the number of visits or the impact of specific pages of our web presence and therefore optimize our content.