Stock Arrival ETA: 17/09/26
Thunderbird EF-390: Heavy-Duty 160mm Offset Insulator Designed for Permanent Fence Lines
The Thunderbird EF-390 is a high-performance, heavy-duty 160mm offset insulator designed specifically for protecting permanent fence lines. By extending an electrified wire 160mm from your existing fence, this outrigger creates a powerful deterrent that prevents livestock from rubbing, leaning, or pushing against your wire or mesh, significantly extending the life of your permanent electric fence lines.
Key Product Features
- Heavy-Duty 160mm Offset Insulator Designed for Durability: Built to withstand the harsh Australian climate, this heavy-duty 160mm offset designed for long-term use features a high-grade galvanised spring steel shaft and UV-stabilised polymer.
- Essential for Permanent Electric Fence Lines: This insulator is the professional choice for adding a “live” wire to existing stock fences. It is the ultimate heavy-duty 160mm offset insulator designed to maintain high voltage across long permanent fence lines.
- Integrated Live Tip Technology: The insulator head features a “Live Tip,” ensuring the end of the offset is electrified. This stops cattle and horses from damaging the offset, as they receive a correction if they attempt to rub against the plastic head on your permanent electric fence lines.
- Secure Steel Post Lockset: Engineered to fit standard Australian star pickets (Y-posts) with a “lockset” mechanism. This ensures your heavy-duty 160mm offset designed for steel posts won’t slide or rotate under the high tension required for permanent fence lines.
- Superior Power Retention: The high-density, UV-stabilised plastic prevents power leakage and arcing, ensuring maximum shock delivery through your permanent electric fence lines, even in high-moisture conditions.
Technical Specifications
| Feature | Details |
|---|---|
| Model Code | EF-390 |
| Product Type | Heavy-duty 260mm offset insulator designed for steel posts |
| Application | Permanent fence lines & Permanent electric fence lines |
| Stand-off Length | 160mm |
| Post Compatibility | Standard Star Pickets / Y-Posts |
| Material | Galvanised Spring Steel &Â Black UV-Stabilised Polymer |


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