DEHNshort arc fault protection
DEHNshort – arc fault protection

DEHNshort – Safe when it matters most

Your low-voltage main distribution board needs permanently reliable protection?

DEHNshort offers reliable protection for switchgear assemblies up to 110 kA - 690V. The modular system is individually configured to suit the assembly at hand. With arc fault quenching times of just a few milliseconds, it is one of the fastest protection systems on the market.

These are the most common reasons for arc faults:

  • Human error when working on the assembly
  • Contaminants
  • Foreign objects, like forgotten tools
  • Animals in the assembly

This means that there is always a risk, even in the most modern assemblies.

An arc fault protection system provides security: Greatest possible system availability and protection of employees.

Plan your optimum DEHNshort active arc fault protection system in good time.

O.K, .... and how do I go about it?

Step 1 – Exploratory stage

Initial meeting

Together, we ascertain:

  • What are the protective aims?
  • What are the technical framework conditions?
  • Design verification?

Protection concept

Which criteria must your protection concept fulfil?

  • Personal protection? System protection? Or a combination of the two?
  • Availability of the switchgear assembly?
  • Conventional (passive) or active arc fault protection?

Planning engineers

Klaus Bastian - Planning engineer
Klaus Bastian | Planning Engineer

#1 Training

  • You receive fundamental information on the theme of arc fault protection
  • and about standardisation


#2 Tenders

  • We support you with the project description
  • and preparing tenders
  • You receive tender specifications


#3 Project

  • You always receive support with current projects

Switchgear manufacturers

Martin Böse entschied sich für DEHNshort
Martin Böse | Switchgear Manufacturer

#1 Integration tests

  • We help you with the constructive integration of components
  • and support you on site during integration tests


#2 First project

  • We train the employees in your "design", "tender preparation" and "commissioning" teams for you
  • and support you with the design, tender preparation and acceptance tests


#3 Subsequent projects

  • Here too, we offer you support with the design, tender preparation and acceptance tests


Harald Gamsjäger - Operator
Harald Gamsjäger | Operator

#1 Risk assessment

  • We help you with the risk assessment


#2 Selection of suppliers

  • You receive tender specification texts and
  • an overview of all the switchgear manufacturers who have successfully completed the integration test


#3 First project

  • We train the employees who take care of the switchgear assemblies in your operation

Have a look at the DEHNshort video

Quenching arc faults as soon as they arise

Arc faults in switchgear assemblies release a huge amount of energy. The heat and pressure are extreme. The result is the failure or even complete destruction of the switchgear assembly. This affects all the devices and systems connected. What is needed, is protection solutions like the DEHNshort protection system which enable quick and reliable quenching of an arc fault.


Have you got any questions? Contact us.


Phone: 877-927-6510

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