40km Electric Fence Energiser (12V/240V)


  • Product Description


      40km FENCE ENERGISER 12V


      Provides a REAL KICK with 9,500V PULSE!

      Heavy-duty, robust, O-ring sealed!

       Weatherproof, dustproof and insect proof.



      Buy direct from the Australian company. We carry stock & spare parts and ship nationwide. Usually same day dispatch.

      Key Information:

      Max. fence length:

      40 km

      Max. output:

      4.0 joules

      Output voltage:

      9,500 V

      Power consumption:

      Low 4.8W

      Max Current 



      2 Years (see below for details)


      Product Includes:

      • 1 x EnergyTech 40 km Power Professional Electric Fence Energizer 
      • 1 x 12V cable set to run directly from a 12V battery or any other appropriate 12V supply & mains Powerpack 
      • 1 x Line connection cable
      • 1 x Earth connection cable
      • 1 x Installation setup guide & manual 
      • NB: Does not include grounding rod, fence wire or fence-posts. Otherwise ready to go!

      Product description:

      The 40 km Professional energiser is designed to provide powerful and reliable long term, hassle free use whilst minimising power consumption. 

      This commercial grade energizer is suitable for single-strand, multi-strand or multi-fence set-ups for electric fences with wire lengths of up to 40km! This device is a quality product - double insulated - and has CE and C-Tick approvals and is IP24 rated.

      Suitable for applications including:

      • Cattle
      • Sheep
      • Goats
      • Horses
      • Dogs
      • Poultry
      • Opossums
      • Roo's
      • Forestry
      • Garden and plant protection


      • Smart Technology for reduced power consumption when used with battery or solar option
      • Shielded ON/OFF switch
      • "O" Ring sealed case
      • Weather, dust, and insect proof design
      • Durable impact-resistant construction
      • Designed for indoor or outdoor (battery/solar) installation and operation
      • Can be powered by any suitable 12 V source
      • Two heavy-duty robust power out connections marked red (positive) and black (negative) for quick and easy hook-up
      • Heavy-duty fence/earth connection cables and clamps included
      • Heavy-duty battery connection cables and clamps included for use as temporary standalone unit on battery power (battery not included)

      Technical specifications:

      Max. fence length:

      40 km

      Input voltage:

      12V DC 

      Output voltage:


      Stored energy:

      5.7 joules

      Max output energy:

      5.0 joules


      4.8 W


      210x153x68 mm


      2.5 kg


      Historically this product would retail for around $450. With the advent of internet sales and distribution things have changed. We cut out the middlemen so you can purchase directly from the supplier. Because of this we offer our products directly to the end user at amazingly low prices. 


      2 year back-to-base replacement warranty against failure or faulty manufacture. Normal misuse/abuse exceptions apply. We carry spare parts IN STOCK.



      International buyers please note: Due to the many differing rules and regulations in different countries it is impossible for us to know and therefore allow for any local charges in the listed postage charge for delivery to your country. Therefore any "local" fees and charges in your country of destination are your responsibility.

      Check out our other energizers in our store including units for fencing up to 50km!

      Feel free to ask any questions using the question box at the bottom of this advert. You can also contact us by email (sales@energytech.com.au) or phone (PAUL - 040 668 0909) or check out our website (www.energytech.com.au).

      Protected by Copyright – EnergyTech

  • Let Our Customers Speak for Us

    • Customer Reviews

      Based on 5 reviews
      Joe Braden
      Best 12v energizer

      Hard to find a large enough 12v energiser. This one really whacks even with a lot a wet grass touching the fence and seems good quality too.

      Warren Wilson

      Thanks for fast delivery of 2 energisers to replace our flooded ones really happy with performance so far good value for money.

      Brian OHanlon
      Good Energiser But one downfull Faulty leads . but overall happy with it ..

      HI very quick delivery but it would not work but after checking things out found it wasn't getting power from the 12v battery .found that the pos wire on the leads wasn't soldered in the black plug that goes in the energizer and just sitting there so no connection .same as neg wire was not soldered .I have yet to pull out the terminals from the black plug so as I can solder them .no luck as yet cant get them out .I will have to see if I can get another plug and clips on eBay and redo it .otherwise works good on 240 Volt ..

      Susan Briscoe
      40 km electric fence energiser

      I'm very happy with this energiser, well constructed, easy to set up. We were constantly repairing fencing wire, 700kg horses 'sitting' on the fence. Since we installed the energiser, the nearest the horses get is a metre.On /off switch very helpful for feed times. Excellent product,

      Daniel K
      Awesome energiser

      This is my second unit and for the price it is brilliant. Have no doubt it will run 40km single strand. Tested with my meter which is 10kv and the needle went off the scale, my Bull did not stand a chance.

  • Product Details