Because of the new EU legal requirements which will come into force on 1 September 2010, the M115 electric fence will be replaced by the M85.
All electric fences which are sold in Europe fall under and are manufactured according to the EN 60335-2-76 EU standard. For many years, electric fences have had a maximum output of 5 joules at 500 ohms. However, the A11 additional provision was adopted in 2007, and consequently – after several postponements of the effective date – the output of electric fences must not exceed 5 joules at 50 ohms after 1 September 2010.
In the case of Elephant electric fences, this means that we are no longer permitted to sell our most powerful and extremely popular M115 and M115D electric fences after 31 August 2010. These two fences both feature an output terminal output power of 11.5 joules (a maximum of 5 joules at 500 ohms). They will be replaced by the M85 and the M85D featuring an output terminal output power of 8.5 joules (a maximum of 5 joules at 50 ohms).
If your choice of electric fence is determined by the animals that are to be enclosed, an M65 electric fence will be amply sufficient for all normal enclosure animals. However, when the choice is also determined by undergrowth, soil conditions, the length of the fence, wear and tear, defective posts, and insulators, etc., the M65 does not always have the sufficient muscle. In such future cases, you should choose the M85, whose output power is 30 per cent higher than that of the M65.
The fact that we are no longer permitted to manufacture the M115 electric fence means that the output power of our most powerful electric fences is reduced by 35 per cent. This does not mean much for perfect enclosures, as an M65 electric fence will cover up to 350 kilometres, before the voltage falls below 1,500 volts, providing you use ordinary galvanised fencing wire. Consequently, the M65 is very suitable for enclosing even difficult animals such as Highland cattle, sheep, goats, and Iceland ponies, among others.
Practically speaking, the consequence of an electric fence with lower output power may be lack of power, in the case of both small and large enclosures, when the fence is situated by streams and other waterways with quick-growing vegetation, in marshlands and heaths with significant undergrowth, or in sandy or clayey soils where, in times of drought, the earth connection is insufficient to produce the power necessary to keep the animals in!
If you require the muscle currently provided by the M115 electric fences (before the new rules become effective on 1 September 2010), you could use less powerful electric fences once you divide your enclosures into several smaller enclosures, thus utilizing the power available in the same efficient way and with the same effect (vegetation killing effect) as the powerful electric fences which are available today allow for.