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Electric Fencing

We have created this section to give information on electric fencing and the products we supply.

Electric Fencing can be a very useful tool in fencing and controlling animals. In some cases it can be used to also protect the animals from predators. We supply electric fencing which can be used with a variety of animals including horses, cattle, sheep, goats, poultry, rabbits and deer. For each of these animals you will use a slightly different system to fence them depending on their size and the environment they are in.

Throughout our products pages you will find product specification and information on what the product can be used for. Use this to enable you to find the best electric fencing products for your animals.

Electric Fence Energisers

The main component of an electric fence is of course an energiser which transforms the power from the source either battery or mains into a current which can power the fence. In our store we have a wide selection or wet battery, dry battery and mains powered energisers to choose from. Our Rutland Electric Shepherd range gives you the opportunity to choose the correct energiser for your fence. Please view the specifications on each of the product pages to find out more information about the fence energiser. You can also follow the link to Rutland's website which will give you further product detail. If you are unsure of the electric fence energiser you need for your system please get in touch and we can advise.

Rutland ESB57 EnergiserRutland ESB202 EnergiserRutland ESM 902

The first choice you must make is what type power energiser will suit your needs. Wet battery are the most popular such as ESB 57 and are powered by a 12v battery such as a leisure or car battery. These are easy to install and maintain by simply recharging the battery when the fence power is low. Dry battery energisers are usually more compact and have different size batteries for each energiser which we supply in store. These are designed as a cost effective option for strip grazing and electric fencing in your garden. Mains energiser are designed for more permanent use and are powered by a normal 240v mains socket. This enable you to leave the energiser inside a battery and run a lead out cable to your fence. This the most cost effective way of powering a semi-permanent or permanent fence with electricity costing only a few pounds per year. Each mains electric fence energiser product page displays the average electricity cost for each energiser we sell.


The second component which is essential to an electric fence working properly is an earth stake. An earth stake could be made from copper or any galvanized steel material. Galvanized steel posts, pipes  are also suitable. If you are looking for an earth designed for electric fencing please view the ones we have in store.  The moisture level in the soil acts as the conductor of electricity. Moisture levels vary from season to season but in most locations whatever the season you will find moisture at some depth under the surface.

For smaller energisers such as the Rutland ESB 57 earth stakes are available which are designed for that particular energiser which can also have use as a stand. For more high powered wet battery energisers such as the ESB 275 and up need at least a 1m earth stake for the fence system to work properly. Dry battery unit such as the ESB 15 and ESB 25 have their own earth stake which can come with the energiser. Mains unit need always to be earthed with 2m earth stake. Please enquire if you need one of these and can tell you if we can supply it due it size and weight.

An ideal earth would have no voltage. In reality, you may get readings of up to 500 volts. If the reading is 500+ volts or more then you need to improve the earth by putting in a wetter area or digging it in deeper. You can check the voltage using a fence tester which is available in our store. To connect an earth stake simply use the crocodile clips from a battery energiser or use insulated lead out cable to connect mains energisers to the earth stake.


Another important part of an electric fence is insulators. These are generally used with fences using wooden posts to insulate the current of the fence from shorting out. Most insulators are made from plastic which insulate the fence upto around 22,000 volts. Also used are porcelin insulators but these are usually more expensive. Insulators are also needed when using metal posts. Round rod insulators are specifically designed to fit over 10mm metal posts. If you are just using poly posts insulators are not needed due to the post having ready holes which hold secure the fence line.

  Strain_Insulator_Tape.jpg      Ring Insulator            40mm Screw Tape Insulator


When choosing insualtors for wooden posts there is a wide range to choose from. Your choice depends on whether your fence is semi-permanent or permanent. If a semi-permanent fences which maybe used for months or up to a year its better to use screw in insulators. For permanent fences which last for a number of years you should use insualtors which are fixed with screws or nails such as clip insulators. The exact type of insulator depends on the fence line you are using. For a semi-permanent fence using poly wire or 12mm tape its best to use screw in ring insulators. For a semi-permanent fence using poly rope you should use screw in rope insulators. For a semi-permanent fence using 20mm or 40mm poly tape your best option is screw in tape insulators. For permanent fences when using 20mm, 40mm tape or poly rope its best to use clip insulators which can fit all 3 and have a rubber insert which secures the poly tape in place. The fence can be strained by using strain insulators at the start and finish of tape runs.

Fence Lines

When setting up electric fencing you have to choose which fence line you intend on using. This choice depends on the animal you are fencing and whether the fence is temporary, semi-permanent or permanent. When fencing horses the more common line used is poly tape. This comes in 3 widths, 12mm, 20mm and 40mm in either white or green. For temporary fences such as strip grazing with poly posts 12mm tape should be used. For more permanent fences 20mm and 40mm tape can be used. In windy or open areas poly rope is recommended as it is more weather resistant. For sheep and cattle the best fence line for practical and cost purposes is poly wire. Poly wire is more likely to shock sheep or cattle as its better suited to passing current through wool or a cows thick skin.

When purchasing a fence line whether it be tape, rope or wire always check the quality. This can be determined by the thickness and the quantity of the conducting wires. Conducting wires are made from stainless steel and are intertwined into the fence line. A good quality 12mm or 20mm tape should have 4 x 0.20mm conducting wires where as 40mm tape should have at least 8 x 0.20mm conducting wires. The size and quantity of the conducting wires affect the currents ability to pass through the fence and thus the distance the line can be used for. For 6mm poly rope there should be at least 6 x 0.20mm conducting wires where as good quality poly wire would have 6 x 0.15mm.

Electric Fence Posts

There are a few options when choosing your posts for your fence. One of the main options being wooden stakes which when put in the ground are 4ft high. We generally do not supply these as they are too heavy an bulky to ship. You can get then at your local fencing store for around £2.00 each or if you want a large number of them we can supply them to you. Another option is using plastic posts or poly posts. These are commonly used in electric fencing when erected temporary paddocks which are regularly moved or when sectioning off parts of paddocks for grazing. We sell four types, 3ft white, 3ft green, 4ft white and 4ft green. The measurements is based on the distance from the top to the bottom of the posts when they are put into the ground but overall they are taller than this.

3ft electric fence posts are generally used for pony, pigs and sheep as they are lower to the ground and the animals they are used with won't be able to jump over it. You have an option of 3ft white if you want the fence to be visible of 3ft green if you want the fence to blend in more. 4ft electric fence posts are used are horses and are referred to as horse posts. These are higher so horses cannot jump them, this is also why they are sometimes used with goats. Again your choice of colour is dependent on whether you wish the fence to be visible. 4ft white so your animals can she the fence clearly or 4ft green if you want your fencing to blend into the landscape.

Electric Fence Kits

Agri-Supply UK offers a wide range of electric fencing kits. These fence kits will always offer an electric fence energiser, earth stake, electric fence posts and a type of fence line but may differ on the other items as different kits are for different purposes. There are electric fence kits ranging from basic starter kits to ones that suit a larger installations. For example, kits with tape and electric fence poly posts are more suitable to horse paddocks and kits that contain fence wire are more suitable to pigs and sheep. We also have poultry netting kits that suit chicken, turkeys, ducks and geese. Poultry netting kits will include a fence energiser, earth stake and a roll of poultry net. There are also electric dog fence kits available for garden use. We have a couple of solar electric fence kits that include solar energisers if access to a power supply is dificult or you are looking to save money long term. Its sure to say that if you are starting an electric fence to simply adding to it these electric fence kits will offer value for money.