The Gallagher M800 Energizer is a 110V mains-powered electric fence energizer designed for permanent livestock fencing, rotational grazing systems, perimeter fences, and pasture subdivision. It is a practical choice for farms with access to AC power that need dependable, continuous fence performance.
Built for agricultural electric fencing, the M800 can serve as the primary energizer for a well-designed grazing system with permanent perimeter and cross fencing.
Key Features
110V AC Powered: Provides continuous fence power without the battery charging requirements of portable DC or solar energizers.
Designed for Permanent Fencing: Well suited for high-tensile electric fence systems and permanent pasture infrastructure.
Rotational Grazing Ready: Can power permanent fencing that supports multiple paddocks and grazing rotations.
Reliable Fence Performance: Designed to maintain effective livestock control when paired with proper grounding and well-maintained fencing.
Versatile Farm Use: Suitable for cattle, sheep, goats, and other livestock electric fencing applications.
Gallagher Quality: Built for dependable agricultural electric fence operation.
Specifications
Brand: Gallagher Model: M800 Product Type: Electric Fence Energizer Power Source:110V AC / Mains Application: Permanent Electric Livestock Fencing
Energizer Sizing Recommendation
We Recommend the 1 Joule Per Mile Rule
For practical farm applications, we recommend approximately 1 output joule for every mile of energized wire.
Be sure to calculate all energized strands, not simply the perimeter distance.
For example, if you have a 2-mile fence with three energized wires:
2 miles × 3 energized wires = 6 miles of energized wire
Vegetation load, fence leakage, poor connections, soil conditions, and the type of livestock being controlled should also be considered when selecting an energizer.
Grounding Recommendation
We Recommend 3' of Grounding Per 1 Output Joule
Proper grounding is critical to getting the full performance from any electric fence energizer. Determine the M800's rated output joules, then allow approximately 3 feet of grounding for each output joule.
Dry, sandy, or rocky soils may require additional grounding.
Common Applications
Rotational grazing systems
Permanent high-tensile fencing
Perimeter fencing
Cross fencing
Pasture subdivision
Cattle fencing
Sheep and goat fencing
Farm and ranch electric fence systems
Use Summary
The Gallagher M800 Energizer provides dependable 110V AC power for permanent electric livestock fencing. It is a strong choice for rotational grazing and pasture systems where reliable fence performance and continuous mains power are needed.
