Lightning and surge protection solutions, safety equipment, electrical material as well as UPS and emergency power systems.
DESITEK A/S
Søndersø (DK) · Odense (DK)New on Amplifa
About DESITEK
DESITEK A/S is a Danish trading and engineering company based in Søndersø on Funen, specialising in the safe operation of electrical installations under exceptional conditions. The company supplies lightning and surge protection solutions (Red/Line, Yellow/Line), safety equipment and personal protective equipment, electrical and power plant material as well as UPS and emergency power systems. In addition, DESITEK offers DEHN Engineering Services: risk assessments, design of lightning protection and earthing, earth resistance analyses, 3D laser scanning, 3D modelling and simulations – including CAD drawings and bills of materials according to DIN EN 62305, DIN EN 50522 and further standards. In its own high-voltage test laboratory in Søndersø, 6-year repeat tests of voltage testers and earthing and short-circuiting devices are carried out. The service portfolio also includes 24/7 service contracts for UPS systems and a measuring system solution for monitoring lightning parameters on wind turbines. DESITEK is a subsidiary of the DEHNgroup, founded in 1910, family-owned and based in Neumarkt (Germany) with more than 2,500 employees, which generated revenue of around 465 million euros in the 2024/2025 financial year.
- Site
- Søndersø
- Processes
- Lightning and surge protection (products and solutions), Testing of voltage testers – 6-year repeat test according to applicable standards (high-voltage, Periodic inspection (repeat test) of earthing and short-circuiting equipment (EaS, insulating rods,, Service on UPS and power supply systems (24/7 service contract), DEHNconcept – design and engineering of lightning protection and earthing (3D drawings,, Calculation of earthing systems for transformer substations (DIN EN 50522, VDE standards), Creation of 2D/3D CAD drawings of buildings for the design of lightning protection systems, Design of surge protection concept (DEHNselect SPD selection software)
- Materials
- NIRO V2A (corrosion-resistant stainless steel, metal roof holder for lightning protection), Kevlar (seams in arc-safe gloves), Leather and neoprene (arc-safe clothing DEHNcare), Nano-treated perspex with UV filter (visor and hood), Copper (earthing cables, EaS devices), NIRO V2A (stainless steel), Copper, Nano-treated perspex with UV filter
- Employees
- 27
- 01
Consulting and risk assessment
- 02
Engineering and planning (DEHNconcept, DEHNselect)
- 03
Delivery of products and components
- 04
Installation and commissioning
- 05
Testing in the high-voltage laboratory
- 06
24/7 service and maintenance
Materials
NIRO V2A (stainless steel)
Corrosion-resistant stainless steel for metal roof holders of external lightning protection up to 53° roof pitch.
Copper
Material for earthing cables and earthing and short-circuiting devices (EaS).
Nano-treated perspex with UV filter
Material for visors and hoods of the arc-safe protective equipment DEHNcare.
Leather and neoprene with Kevlar seams
Material combination of the arc-safe protective clothing DEHNcare (Class 2 according to IEC 61482-1-2).
Locations
Søndersø
DKHeadquarters, sales, service, high-voltage test laboratory, warehouse/logistics
- Materials
- Stainless steel, copper, plastic
- High-voltage test laboratory for 6-year repeat tests of voltage testers and safety equipment
Odense
DKSales office (Cortex Park), 14 employees
Components & Products
Inside the production
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Lightning and surge protection (products and solutions)Engineering | – | – | – | – | – |
| Testing of voltage testers – 6-year repeat test according to applicable standards (high-voltageTesting | – | – | – | – | – |
| Periodic inspection (repeat test) of earthing and short-circuiting equipment (EaS, insulating rods,Testing | – | – | – | – | – |
| Service on UPS and power supply systems (24/7 service contract)Assembly | – | – | – | – | – |
| DEHNconcept – design and engineering of lightning protection and earthing (3D drawings,Engineering | – | – | – | – | – |
| Calculation of earthing systems for transformer substations (DIN EN 50522, VDE standards)Engineering | – | – | – | – | – |
| Creation of 2D/3D CAD drawings of buildings for the design of lightning protection systemsEngineering | – | – | – | – | – |
| Design of surge protection concept (DEHNselect SPD selection software)Engineering | – | – | – | – | – |
| Risk assessment for lightning protection (risk analysis)Engineering | – | – | – | – | – |
| Earth resistance analysis and measurement of earth resistanceTesting | – | – | – | – | – |
| 3D laser scanning and 3D modellingEngineering | – | – | – | – | – |
| Advanced lightning protection simulation, investigation and simulation of high-voltage stressEngineering | – | – | – | – | – |
| DEHNarX protection against arc faults (risk assessment, mapping of arc level)Engineering | – | – | – | – | – |
| Configuration of earthing and short-circuiting devices (EaS configurator)Engineering | – | – | – | – | – |
| Installation and maintenance of DEHNdetect measuring system for monitoring lightning parameters onAssembly | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| High-voltage test laboratory (test facility for 6-year repeat tests of voltage testers and | – | 1 | – | – | Søndersø, Funen |
| Test facility for voltage testers (6-year repeat test according to applicable standards) | DESITEK | 1 | – | – | Søndersø |
Additional services
Reference customers
History
- 1910
Founding of parent company DEHN in Neumarkt (Germany), family-owned in the fourth generation.
- 2024/2025
DEHNgroup achieves revenue of around 465 million euros with more than 2,500 employees.
For strategic reasons, DESITEK relocates the entire sales department (14 employees) to Cortex Park in Odense.