Powerful intelligent energiser constantly monitoring the fence condition

Olli Protector 11 keeps even the greediest and stubbornest animals on the right side of the fence!

Olli Protector  11 is the most powerful energiser of all time in the Olli family: The 11J output energy is more than twice stronger than that of the next most powerful Olli energiser. Besides its superior power, Olli Protector 11 is also a modern intelligent energiser. It constantly monitors the condition of the fence and adjusts its power, for example, depending on the length of the fence, contact with grass or other vegetation, etc.

Protector is powerful enough to electrify a very long fence. In addition, it has a separate 0.5J output (yellow) for electrification of a small sick animal paddock or a fence located within a courtyard, for example. Protector is an excellent choice, for example, for fencing horses and farm animals and for keeping wild animals away.

Olli Protector 11: Safe efficiency

Protector is an energiser complying with the European standard EN 60335-2-76/A12:2010. Owing to this, it can supply even 11 joules of energy into a long fence burdened by vegetation, but an animal or person touching the fence will not receive a shock exceeding 5 joules. When the need for energy increases, for example, due to the growth of hay, the energiser increases its power only after a 60-second delay. If the condition of a proven fence suddenly worsens, for example, because of a tree, animal, or person falling onto the fence, detachment from the fence is facilitated by limiting the intensity of the shock, slowing the pulse frequency, and sounding an alarm signal for 10 minutes.

The alarm function can be turned off with a push button, in which case the energiser will limit the output energy to a maximum of 5 joules under any circumstances.

The illustrative and comprehensive display shows the fence condition in real time. In case of sudden disturbances, the energiser activates an indicator lamp and an acoustic signal, displays the fence voltage, and indicates by the BOOST indicator lamp whether the output energy applied to the fence currently exceeds 5 joules.

Tip! Inadequate earthing is the most common cause of poor fence efficiency. By correct and adequate installation of earthing from the very beginning, you can avoid a lot of problems related to poor fence efficiency. Read more about functional implementation of earthing >

Peace of mind for years – Olli energiser service

All Olli energisers come with a 3-year warranty that also covers damages caused by lightning. Olli energisers made in Finland are serviced by the service outlet of our plant and by authorised Olli Service Partners throughout Finland. We guarantee availability of spare parts for many years to come, for discontinued models as well.

Mains energisers | Battery energisers | Solar panel energisers

Product information

Maximum voltage Indicates the peak impulse voltage in case of a short, leak-free fence (low load) or without a fence. Because energiser voltages are quite high, the values are often expressed in kilovolts (kV), i.e., in thousands of volts.
Voltage at 500 Ohm load Indicates the peak impulse voltage if the fence is heavily loaded.
7,700 V
Stored energy The maximum energy that the energiser can build up for a shock.
Maximum output energy Indicates the shock intensity, in other words, the maximum energy the fence energiser is capable of supplying to the fence in a single impulse. The higher the energy, the longer the fence serviceable by the energiser. A high-energy shock is also more perceptible, since it lasts longer. When comparing energisers, this is a value worth paying attention to.
Power consumption Indicates the maximum actual electricity consumption. In case of a mains energiser, 10W power in round-the-clock use means an annual consumption of 87.6kWh. At a price of €0.15/kWh, using the energiser would cost about €13 a year. A battery energiser is powered from a battery. In many models, power consumption varies depending on the energiser’s power setting and/or fence load. The maximum battery life (in hours, h) can be estimated by dividing the declared capacity of the battery (e.g., 60Ah = 60,000mAh) by the energiser’s declared power consumption: 60,000mAh/100mA = 600h = 25 days.
Recommended number of earthing rods
2-5 pcs.
Maximum theoretical fence length The longest theoretical single-wire fence built of thick metal wire in which the fence voltage can still be sufficient for fence functionality. Indicated in kilometres. In practice, such a situation is truly rare, almost impossible. Nevertheless, alike maximum output energy, the value is useful, for example, when comparing energiser models from different manufacturers.
Maximum theoretical fence length (light vegetation) A value more suitable for comparison when assessing the suitability of an energiser for your fence. Refers to a situation where the fence consists of conductors that conduct electricity well and there is little vegetation in contact with the fence. Note that this value indicates the total length of the fence, i.e., with all of the fence conductor strands combined.
Maximum theoretical fence length (moderate vegetation) Refers to a situation where there is more vegetation in contact with the fence. Note that this value indicates the total length of the fence, i.e., with all of the fence conductor strands combined.
Built-in lightning protection
Warranty, incl. lightning damage
3 years
Olli product code
EAN code