Heavy Duty Combo Insulator
Product Details
New! Built for added strength, our HD Combo Insulator delivers a more secure hold on steel T-posts. Its wrap-around, pinlock design keeps conductors in place, even under pressure from livestock and wildlife.
- Stronger hold—80% more grip (vs. original Combo Insulator)
- Resists impact—less likely to dislodge (e.g. from deer) or break under load
- Pinlock design—easier to adjust and repair
- Universal fit—fits common T-posts (1.25 and 1.33 lb/ft)
Ideal for line posts, it keeps conductors secure so your fence keeps working.
Specs
- Dimensions: 3"L × 1.5"W × 2"H
- Constructed from long-life, UV-stabilized virgin polyethylene
- Package quantity: 10
- Fits 1.25 and 1.33 lb/ft steel T-posts
- Accommodates most low-tension conductors—polywire, rope, twine, and braids up to 6mm diameter; also fits narrow tape
- Also holds smooth high-tensile wire in line post applications
How To Use
- Position the insulator at the desired height on the T-post.
- Place the short hook (pinlock side) against the post, then pull the long side around until it snaps into place (a flathead screwdriver may help).
- Insert the conductor into the face and close the pinlock to secure.
- Confirm the insulator is fully seated and the conductor is secure before energizing the fence.
Tip: In cold weather, or when installing by hand, flex the plastic hooks before installation. This makes them easier to bend and snap into place.
Common Questions
- Why is it called a “Combo” insulator?
- Good question—and honestly, we’re no longer sure ourselves.
It’s been debated by our product team for years. Is it because it works with both low-tension conductors and smooth high-tensile wire? Or because it fits the two most common steel T-posts (1.25 and 1.33 lb/ft)? Maybe it’s because Stan (Premier’s founder) liked the name when he introduced the original design over 25 years ago.
- Pinlock vs. Claw — What’s the difference?
- Pinlock insulators are generally easier to work with. The wire conductor can be inserted or removed quickly by pulling the pin, even with some tension on the line. This allows for faster, simpler adjustments and repairs.
Claw-style insulators trade that convenience for durability. With no small pin to break, they offer a more rugged hold and are better suited for high-stress areas where long-term strength matters more than quick adjustments.
Listed below are recommended optional components or related items. Your particular situation may require alternative recommendations. Please call and talk to our consultants if there are any questions at 800-282-6631.
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Conductors - Rope / Twine / Wire / Tape
IntelliBraid®, 1320 ft. roll
Item #256730 -6mm (1/4") dia. braided rope conductor for electric fences. Black/white color is easy for humans and livestock to see. Polyester for high UV-resistance.
$227.50 -
Conductors - Rope / Twine / Wire / Tape
IntelliBraid® Grazer 2.6, 2000 ft roll
Item #253537 -Premier’s most conductive low-tension electric fence twine—only 20Ω per 1,000 feet! 2.6mm diameter for portability and ease of handling. Ideal for sheep and cattle.
$99.00 -
Fence Connectors and Accessories
Cut-Out Switch with LED Voltage Indicator
Item #333002 -A smarter cut-out switch. Available with a flashing LED voltage indicator and lockable lever for safer electric fence control.
$39.00 -
Gates
Bungee Gate Break Kit
Item #340710 -Electrifiable bungee gate kit for wooden fence posts. Spans up to 23 ft gateways using UV-resistant solid-core bungee for long service life.
$39.00 -
Insulators
T Post Safety Cap, each
Item #381010 -White plastic cap that sits atop steel t posts to prevent damage to scratching livestock.
$0.65 -
High-Tensile Wire and Accessories
Galvanized Steel T-post, 7 ft
Item #327800 -Thick galvanized coating protects posts from the elements. Excellent supports for portable, permanent and high-tensile fence systems.
$29.00 -
Fence Connectors and Accessories
Combo Rope Tensioner + Insulator, each
Item #255021 -Combination fence strainer and insulator. Adjusts easily with a 1/2" ratchet. For electric polyropes, braids, twines and low-tension MaxiShock™ wire.
$2.00 -
Fence Connectors and Accessories
Conductor Hook
Item #237400 -A quick, easy way to terminate a fence. Secures and insulates the leading end of twine, rope or tape to an existing fence.
$1.25 -
Fence Connectors and Accessories
PowerLink™ 4.0, 48" long
Item #335505 -Make instant, in-field connections between electric fences without turning off the energizer. Simple to use and effective.
$5.50 -
Energizer Accessories
Fence & Battery Digital Tester
Item #200010 -All-in-one fence tester checks the voltage of energizers, fences and 12V batteries. Simplify electric fence troubleshooting with one device!
$38.00 -
Fence Connectors and Accessories
Warning Sign
Item #346000 -Let passersby know that your fences are electrified with this easy-to-read electric fence warning sign.
$2.50
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So we reinforced those pressure points. The result is a stronger hold on the post and a tougher insulator designed for years of real-world use.
One tradeoff—it takes more effort to install. But once it’s on, it’s not coming off easily. (Tip: When installing, use a flathead screwdriver to lift the hooks over the T-post for added leverage.)
