DEHN Surge Protection Academy

10+ free surge protection guides for electrical professionals.

Homes & solar · EV charging · commercial · rail & telecom

Cutaway of an Australian home showing where surge protection goes: main switchboard, sub-board, solar inverter, EV charger and home battery
1 switchboard · 2 sub-board · 3 solar inverter · 4 EV & battery

Practical guides from DEHN with diagrams, protection concepts, product selection tables and installation photos.

Cutaway of an Australian home showing where surge protection goes: main switchboard, sub-board, solar inverter, EV charger and home battery
Where surge protection goes in an Australian home: 1 main switchboard · 2 sub-board · 3 solar inverter, DC side · 4 EV charger & home battery

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We email you one confirmation link — click it and the Academy opens. By signing up, you agree to receive occasional emails from DEHN and that DEHN's Australian team may contact you personally about your projects. Unsubscribe any time. Privacy policy

Cover of the DEHN guide Surge protection for single-family and multi-family dwellings

Homes & solar: the whole house in one guide

DEHN's guide to surge protection in single-family and multi-family homes, from the main switchboard to the wallbox.

  • Main switchboard and sub-boards, including retrofits
  • Rooftop PV: protection on the DC side, upstream of the inverter (incl. existing battery storage)
  • EV wallbox and heat pump
  • Data, antenna and home-office lines

14 pages · protection concept, product selection tables, retrofit scenarios

What you can do with the guides

  • Plan a whole-house concept. Main switchboard, sub-boards and the equipment behind them, as coordinated protection stages.
  • Know which surge protective device goes where. Type 1+2 at the main switchboard, Type 2 in sub-boards, Type 3 close to sensitive equipment.
  • Add solar, wallbox and heat pump. Where protection sits on the PV DC side, at the charger and on heat-pump controls.
  • Brief yourself before an unfamiliar job. EV depots, data centres, substations, Ex areas, outdoor lighting, rail and telecom.

Get free access to all 10+ guides

Four application areas, one sign-up

10+ DEHN guides in four application areas.

  • Homes & solar

    Main switchboard to wallbox: sub-boards, rooftop PV, heat pump.

  • EV charging

    From the home wallbox to the bus depot, plus earthing and bonding for charge points.

  • Commercial

    Data centres, transformer substations, Ex areas and outdoor LED lighting.

  • Rail & telecom

    Rail-side systems and telecommunication connections.

Look inside: diagrams and installation photos

Details straight from the PDFs.

Photo: red DEHNguard surge protective devices mounted on the DIN rail of a sub-boardp. 8
Surge protective device on the DIN rail of a sub-boardHomes & solar guide, retrofit section
Diagram: lightning protection zones and surge protective device types at an EV charging sitep. 5
Protection zones and surge protective device types at a charging siteElectric mobility guide
Diagram: surge protective devices in an intrinsically safe measuring circuit between control room and Ex zonep. 3
Surge protective devices in an intrinsically safe measuring circuitCommercial: hazardous areas guide

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  1. Sign up here. Pick your role, add your name, company and work email.
  2. Confirm your email. Click the one link we send you.
  3. Open the library. All 10+ guides in one place. Download the ones that fit your next job.

Who's behind it: DEHN is a family-owned electrical engineering company from Neumarkt, Germany, founded in 1910. Its fields are lightning protection, surge protection and safety equipment.

  • Family-owned
  • Since 1910
  • German engineering

Get free access to all 10+ guides

What best describes you?

We email you one confirmation link — click it and the Academy opens. By signing up, you agree to receive occasional emails from DEHN and that DEHN's Australian team may contact you personally about your projects. Unsubscribe any time. Privacy policy