• Farm and Ranch

> How to select a BULL-DOZER Fence Charger

American Farm Works New Digital BULL-DOZER Fence Chargers Feature…

• Digital circuitry for more durability and lower energy use.
• One-piece Replacement module-10 minutes in-store repair.
• Same power and quality as foreign models costing twice as much.
• Optimum pulse shape for more effective animal control.

When Selecting a Bull-Dozer Fence Charger…

• “Miles of fence” is not important-amount of acreage and type of animals are…
• Back yard to 20 acres, horse, cow or dog: Model 4465 or 401 Low Impedance
• 10 acres to 40 acres, horse, cow or dog: Model 4444, 401 or 402 Low Impedance
• 1+ acres with sheep, goats, deer or predators: Model 401,402 or 4400 Low Impedance
• 40+ acres with cattle, horses, sheep or predators: Model 4400 or WASP Low Impedance
• Solar Fences: up to 5 acres: Model 4000 6-volt, 20+ acres: SUN SCORPION 12-volt
• Temporary or Strip Grazing fence: YELLOW JACKET flashlight battery Model

What is the difference between Fence Chargers?

All chargers put out about the same voltage: 8,000 to 12,000 volts. Amperage and pulse shape determines effectiveness. The difference is like horsepower: Most cars will go 60-80 miles per hour until they come to a steep hill. The car with less horsepower slows down. The car with more horsepower maintains its speed. The same is true for fence chargers: the more powerful the fencer, the more load (grass & weeds, etc.) it can handle. For example, a fence load that would pull a Model # 4465 from 11,000 volts to 2,000 volts would pull our Model 401 low impedance fence from 8,000 volts to 5,000. Our Model 4400 would go from 8,000 to 7,000 volts.

In addition to more horsepower, low impedance fence chargers also have a stronger pulse that animals remember longer and avoid the fence. Low impedance fence chargers are completely safe for people and animals.

What are the secrets to effective electric fencing?

• Good ground system – 90% of problems are poor grounding. Always install three ground rods (6ft. long-10ft. apart). Dry areas might need more than three rods or a ground wire in the fence.
• Adequate fencer charger for the fence – always recommend more powerful fencer to allow for more fence, poor construction, etc.
• Use proper materials designed for electric fencing – Insulators, insulated cable, ground rods, connectors, etc.
• Check the fence daily with a Voltmeter or Five-Light Tester.

Copyright 1998 by Bob Kinsbery