Description

Thunderbird S375 Solar Kit for Remote Farm Fencing

The Thunderbird S375 solar kit helps farmers power permanent electric fences in paddocks where mains electricity is unavailable. It combines the Australian-made MB375 energiser with a matched 20-watt solar charging system.

With 3.4 joules of stored energy and an ideal-condition rating of up to 35km, this package provides a practical off-grid solution for livestock containment, property subdivisions and rotational grazing systems.

Why Choose the Thunderbird S375 Solar Kit?

• Complete energiser and solar charging package
• Australian-made Thunderbird MB375 energiser
• 20-watt solar panel
• 3.4 joules of stored energy
• Ideal-condition fence rating of up to 35km
• Approximately 7.9kV maximum no-load voltage
• Approximately 5.5kV output at a 500-ohm load
• Suitable for permanent and remote electric fences
• Reduces manual battery charging and replacement trips

What Is Included in the Package?

• Thunderbird MB375 mains-and-battery energiser
• 20-watt solar panel
• Solar charging equipment
• Solar mounting components
• AC mains adaptor
• 12V battery lead
• Fence and earth connection leads

A suitable rechargeable 12V battery is required and is not included.

Choosing the Right 12V Battery

An 80Ah deep-cycle or marine battery is recommended as a suitable starting point for this system. Battery capacity should be confirmed against the installation, local conditions and the amount of reserve power required during cloudy weather.

An old, damaged or undersized battery may fail to hold enough energy to operate the fence overnight or through several days of limited sunlight.

Understanding the 35km Fence Rating

The 35km figure is a maximum ideal-condition rating rather than a guaranteed length of installed farm fence. Actual performance depends on the amount of work the energiser must perform.

Vegetation, poor earthing, damaged insulators, inferior wire joins, underground cable and multiple live wires can all increase the load. A shorter fence covered in heavy grass may require more energy than a much longer, clean fence.

Suitable Electric Fence Applications

• Cattle, sheep and goat paddocks
• Permanent livestock fencing
• Property subdivisions and laneways
• Rotational and strip-grazing systems
• Remote paddocks without mains electricity
• Multi-wire electric fence installations

Correct Earthing Is Essential

A properly designed earth system allows the electrical pulse to complete its circuit when an animal contacts the fence. Even a powerful energiser will perform poorly if the earth system is inadequate.

Install suitable earth stakes in moist, conductive ground where possible. Dry, sandy or rocky soil may require additional earth stakes. Test the earth system and fence voltage regularly, particularly during dry weather.

Positioning the 20W Solar Panel

Mount the panel in an open position where it receives direct sunlight throughout the day. In Australia, a north-facing position will generally provide the strongest year-round exposure.

Avoid shade from trees, buildings and equipment. Keep the panel clean and check its mounting components, cables, charging equipment and battery connections regularly.

Thunderbird S375 Solar Kit Specifications

• Brand: Thunderbird
• Package model: S375
• Energiser model: MB375
• Stored energy: 3.4 joules
• Maximum fence rating: Up to 35km under ideal conditions
• Maximum no-load voltage: Approximately 7.9kV
• Voltage at 500 ohms: Approximately 5.5kV
• Solar-panel capacity: 20 watts
• System voltage: 12V
• Recommended battery capacity: Approximately 80Ah
• Battery included: No
• Energiser manufactured in Australia

Warranty

The Thunderbird energiser includes a two-year manufacturer’s warranty plus one additional year provided by Horsley Wholesale. The fitted lightning spark-gap protection carries a six-month lightning warranty, subject to the applicable warranty conditions.

Reliable Solar Power for Working Fences

The Thunderbird S375 solar kit gives you the freedom to establish an effective electric fence beyond the reach of mains electricity. Correctly installed with a healthy battery, adequate earthing and a well-maintained fence, it helps protect livestock while reducing ongoing battery-changing work.

Browse our solar electric fence energisers for other off-grid fencing options.

Learn more about Thunderbird electric fencing products and their Australian rural product range.

Additional information