M5800i Fence Energizer

“Very Powerful Intelligent Energizer for remote monitoring & complete peace of mind”


The M5800i Fence Energizer System is the world’s 3rd most powerful energizer!
With a massive 58 joules (40 joules max output energy) stored energy and all the smarts of the i Series system, the M5800i Energizer is a serious contender in the high power energizer market and best in class for electric fence energizers in the 30-40 output joule range !

An intelligent & very powerful energizer system – the fence that talks to you.
Working together the i Series system (Energizer, Energizer Controller, Fence Monitor & Remote/Fault Finder) provides fence information at a glance and if it detects any faults, leads you directly to them, saving you hours of searching.


Energy efficient, this large Energizer provides high fence performance – adjusting its power output to suit your fence conditions and minimise power consumption.

  • Delivers maximum power for the ultimate control of wildlife in large game protected areas and medium to large security fence applications.
  • M5800I Fence Energizer System – Powers up to 35km of multi-strand electric fencing. A realistic value for South African conditions will be 16-25km of multi-strand electric fencing.
  • Quick scan LED fence performance lights : green light shows fence OK, red light flashes if there’s a fence fault and solid red light shows sudden increase in fence load.
  • Easy installation and good connection using split bolt recessed terminals.
  • User safety and reliable animal or human control with in-built lightning and short circuit protection.
  • Better fence management with output, earth and fence voltage alarms.
  • Flexible power options – can be used with an inverter (modified) to allow battery back-up operation.

Energizer Controller – total peace of mind that your fence is working correctly

Shows all of your fence performance information (e.g. voltage, faults and location) in one convenient separate display box that can be located up to 50m away from the Energizer.

  • Displays voltage and current readings at the Energizer and for up to 6 attached Fence Monitors.
  • Locate in a convenient spot for instant updates e.g. side of the shed.
  • Locate fault zones quickly and use the Controller to turn the Energizer on/off.
  • Fully waterproof for indoor or outdoor placement.

Fence Monitor – a watchful eye on all corners of your fence

The M5800i energizer comes in two packages. One with energizer & energizer controller and the other with I remote fault finder and one monitor included, add up to five more on your fence system to turn it into a fully monitored set up that keeps the Energizer Controller constantly up to date with fence performance.

Remote & Fault Finder – save hours searching for & fixing faults

The Remote pinpoints the fault within the monitored zone and enables you to turn off the Energizer during repair and on again once complete.

  • Compatible with SMS Energizer Controller which enables alarms to be sent to your phone, fence performance status checked and energizer turned on/off via text message.
  • Energizer can also be connected to an Alarm System which monitors a section of fence and drives external strobe lights, sirens or alarms panels if the circuit is broken eg. gate opened or a wire cut.
M5800i Technical Specifications
Fence Distance : Km 35 Km
Fence Distance : Realistic 16-25Km
Distance Powered : Hectares 240 Ha
Input Voltage 220v – 240v
Maximum Stored Energy 58 Joules
Maximum Output Energy 40 Joules
Output Voltage @ 500 Ω 9,000 Volts
Output Voltage @ 200 Ω 9,000 Volts
Output Voltage @ 100 Ω 8,500 Volts
Output Voltage @ 50 Ω 6,100 Volts
Output Voltage @ 25 Ω 4,100 Volts
Minimum number of earth rods required  12 Earth Rods
Physical Details
Weight : kilograms (2 x Packages) 8.8 kg or 9.6 kg
Volume : Metric 430 x 310 x 140mm