Software DEHNsupport Toolbox

Planning software for lightning protection systems

DEHNsupport The DEHNsupport Toolbox software offers a variety of calculation options in the field of lightning protection ranging from risk management to the calculation of the length of the air-termination rods, separation distances and length of the earth electrodes. The electronic planning and decision aid provides easy and practical support to planners, installers of lightning protection systems and electricians. This makes it considerably easier to professionally implement a comprehensive lightning protection system.

DEHNselect SPD Tool

The DEHNsupport Toolbox software has been expanded with another module and now also offers comprehensive support for planning internal lightning and surge protection. The new DEHNselect SPD software module allows to define and select all internal lightning and surge protection products. It provides a structured plan with a bill of material and allows fast online access to all documents of the selected products such as data sheets and installation instructions.

Get in touch for more information on DEHNsupport

As a result of international requirements, the software is available in different languages and includes country-specific normative adaptations.

The DEHNsupport Toolbox consists of the following modules:

  • DEHN Risk Tool (risk management)
  • DEHN Distance Tool Module (calculation of the separation distance)   
  • DEHN Air-Termination Tool (calculation of the air-termination rod length)
  • DEHN Earthing Tool (calculation of the earth electrode length)
  • DEHNselect SPD Tool (selection guide and dimensioning for surge protective devices - free full version available with the download)


Information: Planning of Lightning Protection Systems PDF [2.8 MB]
System requirements: For server and multi-user installations PDF [0.1 MB]
Brief instruction: Risk analysis PDF [6.2 MB]
Software: DEHNsupport Toolbox [300 MB] (.exe-Datei)

Note: The software includes all DEHNsupport Toolbox modules.
Licence holders can use all tools to their full extent. If you do not hold a licence, a full version of the DEHNselect SPD modules is included, all other modules are available as a demo version.

Installation notes

You are already using the DEHNsupport software and want to install the update V 3.1. The automatic update function in the software allows you to quickly and easily update your DEHNsupport software. If you want to use the program offline, you can download the full version and install it on your computer.

The software has been specified according to the relevant standards and the associated national calculation parameters:

  • International - IEC 62305
  • Europe - EN 62305
  • Austria - ÖVE/ÖNORM EN 62305
  • Belgium - NBN EN 62305
  • Croatia - HRN EN 62305
  • Czech Republic - ČSN EN 62305
  • France - NF EN 62305
  • Germany - DIN EN 62305 (VDE 0185-305)
  • Great Britain - BS EN 62305
  • Hungary - MSZ EN 62305
  • Italy - CEI EN 62305 (CEI 81-10)
  • Macedonia - MKS N.B4.801
  • Poland - PN EN 62305
  • Russia - МЭК 62305-2
  • Slovakia - STN EN 62305