PI 21n Notched Terminal Insulator
For insulating low-tension fences at corner and end posts and around trees.
Notch eliminates need to thread strand of cable or twine through insulator.
Common Uses
Specs
- Glass filled nylon
- 2.75"L x 1.25"W
- Packaged in bags of 25, but sold individually
Benefits
How to Use
- From the closed hole, attach insulator (using rope or wire) to a tree, end or corner T post.
- Through the notched set of holes, thread fence conductor and terminate at ends, or continue on for corners. Note: If using this insulator for rope or MaxiShock, a P Spring can be tied directly to the insulator prior to fence wire being attached to P spring using rope or wire.
- When the fence wire is pulled tight, this insulator will pull away from the post.
Precautions
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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Wire Panels and Accessories
Braided Cord, 8 ft
Item #965410 -Useful length of cord for having around the farm. Hang poultry waterers and feeders. Attach wire panels and gates.
$1.50 -
Conductors - Tape-Rope-Twine-Wire
IntelliBraid®, 660 ft. roll
Item #256710 -6.0mm conductor for electric fences. Black/white color combination is easy for humans and livestock to see.
$106.00 -
Conductors - Tape-Rope-Twine-Wire
EnduraSoft® 6.0, 660 ft roll
Item #256500 -For permanent electrified fences. Made of polyester so it’s soft to the touch. Very good conductivity (50Ω/1000 ft) so it’s suited for any length of fence line and nearly all energizers.
$93.50 -
Conductors - Tape-Rope-Twine-Wire
IntelliRope® PE 6.0, 660 ft. roll
Item #256900 -Rope fence for both permanent and portable situations because polyethylene filaments resist wear and abrasion. Use for horses, cattle, sheep and goats.
$57.00 -
Conductors - Tape-Rope-Twine-Wire
IntelliRope® PE 4.5, 660 ft roll
Item #245100 -Excellent for both permanent and portable situations because PE filaments resist wear and abrasion. Excellent built-in elasticity. This 4.5mm version is less weight, lower cost and better for short-term fences.
$37.50 -
Conductors - Tape-Rope-Twine-Wire
IntelliBraid® Twine PE 3.0, 660 ft roll
Item #253530 -Electrifiable braid conductor preferred by those who wind and unwind twine or polywire frequently. For temporary or portable fences.
$30.50 -
Conductors - Tape-Rope-Twine-Wire
IntelliTwine™ 2.25, 660 ft. roll
Item #253500 -Electric fence conductor for temporary fences. Lightweight and easy to move throughout the field.
$20.50 -
Conductors - Tape-Rope-Twine-Wire
MaxiShock™ Wire, 1320 ft. roll
Item #251000 -Twisted cable conductor for electric fences. Thick layer of galvanized coating for years of outdoor use.
$116.00 -
Conductors - Tape-Rope-Twine-Wire
IntelliTape™, 330 ft. roll
Item #257010 -A 1/2" wide electric fence conductor whose visibility is ideal for horses and other large, fast moving livestock.
$17.50 -
Fence Connectors and Accessories
P Spring
Item #255010 -Used to keep rope fences at desired tension. Install a P Spring every 1320 ft.
$3.15 -
Fence Connectors and Accessories
5-Light Wireless Fence Tester
Item #200006 -Low cost 5-light wireless tester to measure approximate fence voltage. Used to determine if your energizer/charger is working properly.
$15.00 -
Fence Connectors and Accessories
Warning Sign
Item #346000 -Attaches to an electric fence for netting to warn people that the fence is electrified.
$0.98
Write a Review
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Janelle C from Washington
Super lovely to not have to restring the whole fence. These are sturdy and strong. Very pleased.
Larry H from Tennessee
The notched insulator made putting up the single strand deer fence around my 1/4 acre market garden a snap. When I mow it takes just a minute to loosely coil the twine and pull out the step in posts so I only have to work around the corner t-posts.
Michael C from Louisiana
This is a half baked design in my opinion. Good start, but needs work. The only reason I feel compelled enough to review it is they failed exactly how I expected them to.
It is difficult to explain but because of the way that the wire must go into the insulator (horizontal as shown in the picture) the part that attaches to the post is extremely awkward, at best.
You have two options, loop it through the given hole which is vertical which causes the insulator to twist, or you have to loop it through the horizontal open hole furthest away from the post. That can cause the insulator to flip down which can pop the wire out and in my cause caused a gate handle to pop out, releasing my goats.
I might recommend pairing these with zipties to hold them firmly in place.
Joe H from SC
Simple and last a long time in service. Never had a failure.
Jackie G
Great invention. Made stringing the fence so much quicker! I will use only these in the future (other than at rope gates). The regular insulator works best there.
