DEHNvario - the variable arrester family

DEHNvario protects a great variety of signals in power supply and information technology systems. With devices from this product family you can protect, e.g. voice alarm systems, loudspeaker systems and analogue camera systems.

Praktische Direkt-Stecktechnik

Quick and easy installation thanks to practical direct plug-in technology. No tools needed! To replace the arrester, simply release the terminal unit and remove it from the enclosure. Not having to disconnect the wires individually saves time and hassle.

Praktische Prüföffnung

A further special feature in the enclosure design makes it easier to test the signal circuit. Special openings in the terminal units make it possible to test when wired, too.


Safe and easy earthing

Good to know: The earth contact of the DEHNvario can carry lightning and impulse current, so there is no need to install an additional equipotential bonding conductor. The arrester is simply connected to the equipotential bonding via the DIN rail.

Detailed information on the different models

DEHNvario for electroacoustic systems

Protects voice alarm and loudspeaker systems against lightning interference and damage caused by overvoltages.

More info on DEHNvario

DEHNvario 3in1 for analogue camera systems

DEHNvario schützt analoge Kamerasysteme

Three interfaces protected by just one device: the power supply interface, the data interface and the video signal.

More information on DEHNvario 3in1

Click here to find our online catalogue:

• DEHNvario for electroacoustic systemsshow product
DEHNvario 3in1 for analogue surveillance camerasshow product

For further information please contact our technical support.