Before deciding which energiser is required you will need to take the following points into consideration:

• Power Source - Mains or Battery. It is recommended that if mains power is available then this should be used as it is more convenient, usually cheaper and has lower maintenance requirements.
• Usage - Is the energiser to be used for permanent fencing or temporary (break feeding) fencing.
• Power Requirements - This is determined by a number of factors:
  1. Distance to the furthest point on your farm.
  2. Total length of fenceline to be electrified.
  3. Amount of seasonal vegetation growth which is likely to affect the electrified wires.
  4. The minimum voltage required to control your particular type of animals.
  5. Conductivity of the ground.

It is also important to remember to allow some extra power capacity for future expansion of your electric fence system and to also overcome any excessive fence challenge such as increased vegetation growth.

The best measure of performance of on energiser is the measurement of Joules. There are two ways of measuring joules in an energiser- stored joules and output joules. Stored joules are not an effective measurement of the performance of an energiser as they only indicate the joules stored internally (in the capacitors). When stored energy is released onto the fenceline, some of the energy is lost in the energiser. Depending on the model of energiser, the loss can be as much as 35%.

The most accurate way to gauge the effectiveness of an energiser is by quoting the maximum output joules. This is the energy that is actually available to the fenceline.

The shape of the pulse that is released by the energiser also influences the performance on the fenceline. Stafix has developed a pulse which remains stable and maintains its pulse shape under all loads. This gives Stafix energisers a higher "shock factor". The pulse travels further down the fenceline and more effectively overcomes loads. This technology is known as "Cyclic Wave™ technology".

The "Cyclic Wave™" pulse emits minimal Radio Frequency Interference (RFI). Stafix energisers therefore, do not require a lot of RFI suppressors. This leaves more energy available to the fenceline.

As the loading on a fenceline increases, the voltage decreases. Due to the effectiveness of the "Cyclic Wave™" pulse, it can react to heavy loadings on the fenceline and maintain comparatively higher voltages.

STAFIX MAINS ENERGISERS with CYCLIC WAVE™ TECHNOLOGY Energisers are available for 230-240 volts and 110-120 volts. NOTE:Use hectares and acres listed as a guide only. The size of the energiser required will be determined by the length of fence and property conditions.

STAFIX M18 - The largest energiser in the Stafix range and has a maximum energy output of 18 joules. The Stafix Ml8 is suitable for farms from I00+ ha (250+ acres) and will power up to 180km (110 miles) of wire. Open Circuit Voltage (up to) 8.0kV 500 Ohm Voltage (up to) 7.0kV 100 Ohm Voltage (up to) 4.9kV STAFIX M12 - This energiser has a maximum energy output of 12 joules. The Stafix M12 is suitable for farms up to 100 ha (250 acres) and will power up to 120 km (75 miles) of wire. Open Circuit Voltage (up to) 8.0kV 500 Ohm Voltage (up to) 7.0kV 100 Ohm Voltage (up to) 4.2kV5 STAFIX M6 - Has a maximum energy output of 6 joules. The Stafix M6 is suitable for farms up to 40 ha (100 acres) and will power up to 60 km, (40 miles) of wire. Open Circuit Voltage (up to) 8.5kV 500 Ohm Voltage (up to) 6.5kV 100 Ohm Voltage (up to) 3.2kV STAFIX M3 - Has a maximum energy output of 3 joules. The Stafix M3 is suitable for small farms up to 20 ha (50 acres) and will power up to 30 km (20 miles) of wire. Open Circuit Voltage (up to) 8.5kV 500 Ohm Voltage (up to) 5.6kV 100 Ohm Voltage (up to) 2.4kV STAFIX Ml.5 - Has a maximum energy output of 1.5 joules. The Stafix M1.5 is suitable for small farms up to 10 ha (25 acres) and will power up to 15 km (10 miles) of wire. Open Circuit Voltage (up to) 8.5kV 500 Ohm Voltage (up to) 4.6kV 100 Ohm Voltage (up to) 1.8kV