MULTIRIGGER DOUBLE OFFSET 250MM EF-85D THUNDERBIRD EF-85D

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MULTIRIGGER DOUBLE OFFSET 250MM EF-85D THUNDERBIRD EF-85D at a glance

EF-85D
250mm Double offset insulator
Mount onto steel posts.

Secure your boundaries and gain superior control over your electric fencing with the Thunderbird 250mm Double Multi Rigger Pigtail Offset Insulator. This pack of ten insulators is engineered for the tough demands of Australian properties, offering a robust and highly versatile solution for reinforcing or extending your existing fence lines. With a generous 250-millimetre offset, these riggers effectively hold two separate live wires well clear of your main fence, preventing stock from pressuring posts and wire, and eliminating the risk of power leakage or shorting out on contact. This dual-wire capability is perfect for managing different-sized animals or creating a more formidable psychological barrier. The classic pigtail loop design ensures your wire is held securely while allowing for quick and straightforward installation or adjustments. Unmatched in its adaptability, this insulator is designed for seamless integration with almost any fencing setup, easily mounting to star pickets, round or oval steel posts, and traditional timber posts. To ensure you can get the job done without delay, each pack comes complete with all the necessary hardware, including a Nylock nut and bolt for star picket mounting and a sturdy screw for timber applications. It’s a practical, all-in-one kit designed to deliver reliable performance and lasting peace of mind for your property.

Mount the Thunderbird EF-85D to your existing fence posts using the double offset brackets, positioning the unit at a height where livestock can't contact it directly. Run your live wire through the 250mm offset arms to keep it clear of the post and vegetation that might short it out. Connect your earth stake at least 10 metres away from the energiser, and test the fence with a voltage tester before turning stock in. Tips: Keep vegetation trimmed back from your live wire regularly — rank grass and weeds touching the fence will drain your voltage fast and leave you wondering why stock are getting through. The double offset design is worth the extra effort because it keeps your wire away from post contact, which is one of the biggest voltage losses on farm installations. Use a proper earth stake in moist soil if you can, not just a water tank or pipe — you'll get consistently better performance.

Common Questions

What's the offset distance on these insulators?

These are 250mm double offset insulators, so they hold two live wires well clear of your main fence with a generous 250-millimetre offset.

How many insulators are in a pack?

Each pack contains ten insulators.

What posts can I mount these on?

These insulators are designed to mount onto star pickets, round or oval steel posts, and traditional timber posts. They're engineered for seamless integration with almost any fencing setup.

What hardware is included?

Each pack comes complete with all necessary hardware — a Nylock nut and bolt for star picket mounting, and a sturdy screw for timber applications.

Can these hold two separate wires?

Yes, that's the main feature. The dual-wire capability lets you run two separate live wires, which is handy for managing different-sized animals or creating a stronger psychological barrier for stock.

Do you ship this product Australia-wide?

Yes, this product ships Australia-wide via Australia Post or road courier. Select your preferred shipping method at checkout.

Can I Click & Collect from Gympie?

Yes — Click & Collect is available from our store at 55 Tozer St, Gympie. Open Mon–Fri 8am–5pm and Sat 8am–12pm. Click & Collect is FREE on orders of $175 or more, or a flat $10 on orders under $175. Select Click & Collect at checkout and we will have your order ready.