Red Snap’r® Yellow Insulator Rod Post Cap– 25 Count

Model #: IRCPY-RS

2 reviews
0 5 5



Reward Points with My Account Learn More »


  • Heavy-duty post cap and insulator for semi-permanent fencing
  • Protects horses, show cattle and livestock from jagged post tops
  • UV-protected plastic resists weathering and harsh conditions
  • Claw design allows for easy fence line setup and takedown
  • Works with low impedance and standard duty fence controllers
  • 25 insulators per package
  • Service Experts Available To Answer Your Installation Questions

Red Snap'r® Yellow Insulator Rod Post Cap - 25 Count

Get 25 Red Snap’r® Rod Post Cap Yellow Electric Fence Insulators in one packageWith these heavy-duty electric fence insulators, you can quickly install or remove fence lines while protecting your horses, show cattle and other livestock from the jagged ends of fence posts. The claw design on these insulators allows you to easily thread polywire, steel wire or aluminum wire along your fence perimeter. As a result, this durable insulator gives you the ultimate in electric fence flexibility to quickly attach your insulator’s plastic claw. With these non-conductive insulators, you can avoid the power loss that comes from accidental grounding. Each package contains 25 Red Snap’r® Rod Post Cap Yellow Electric Fence Insulators



Red Snap’r® Rod Post Cap Yellow Electric Fence Insulators are designed to hold polywire, steel  wire or aluminum wire. With these rod-top claw insulators, your fence line is held at the perfect height without risking an accidental short. Constructed from UV-protected plastic, these electric fence insulators are easy to use – simply pop the cap over your post, lace the wire around each claw and your electric fence will be ready for power.



This package contains 25 post-top insulators, plenty for a new fence installation or when setting up a temporary corral. Still have leftovers? Keep them around in case you expand your fence or need to perform maintenance or emergency repairs.



Each heavy-duty post-top insulator is ready for immediate installation. To attach insulators to your fence rod, slide it over the top of your post and, if needed, secure it with a few taps from a rubber mallet. After that, you can quickly and easily run your fence line.



Red Snap’r® uses a molded, heavy-duty plastic, known as plastic, in the production of these post-top electric fence insulators. This durable plastic is perfect for electric fencing since it’s strong, non-conductive and UV-protected.



Installing a temporary fence? Remember that every fence requires a grounding system, and you have everything you need with the Total Grounding System, a kit that includes all the supplies required. Also be sure to regularly test your fence for proper voltage with a Digital Fence Line Tester, which can help you detect shorts and power problems.



Red Snap’r® joins Zareba® and Fi-Shock® to form the largest manufacturer of electric fence systems in North America and offers durable, reliable electric fence products for all your pet and livestock fencing needs. Since the 1930s, Red Snap’r® and its related brands have been leaders in electric fencing, providing for homes, farms and ranches in the decades since. If you have questions about your electric fencing purchase, reach out to Red Snap’r® Service Experts for assistance.



Red Snap’r® Yellow Insulator Rod Post Cap - Specifications

Model Number IRCPY-RS
Materials Plastic
Color Yellow
Fence Wire Type Polywire, steel wire or aluminum wire
Fence Post Diameter 1/4 in to 9/16 in
Insulators Per Package 25


What's included in the box:

  • 25 Red Snap'r® insulators




Disclaimer: Zareba® System does not endorse any information contained in product reviews. Please follow all label instructions for your specific use.

Most Recent Customer Reviews

Review Rate
Review posted on
January 10, 2018
perfect! By cheryl

easy to use and handy in the field

Review Rate
Review posted on
November 21, 2017
works for me especially with deer around By pineyriver

I love using these caps to put on fiberglass rods for my horses' electric fencing. If the deer trip on the wire, the cap pops off but doesn't break the wire. And since they are yellow, I can usually locate the cap!

Read All Reviews (2) Write a Review

There are no entries.

Ask Your Own Question
  • Yes, sign me up for an eNewsletter subscription so that I can receive information about products, enhanced services, exclusive sales and other special offers.

  • Reload captcha

* Required Fields

All About

All About Insulators

Insulators prevent electrical shorts between the electrified wire and the fence posts. Good-quality insulators are critical to a properly functioning fence. Insulators are made from materials that do not conduct electricity, most commonly plastic or ceramic.


Plastic insulators are molded from polyethylene, polycarbonate, or nylon and are designed to hold electrified wire near a variety of posts without losing energy through the post.

There are several styles to choose from because the insulator must match both the type of wire and the type of fence post being used. Plastic insulators include round post insulators, T-post insulators, wood post insulators, corner post insulators, end post insulators, and chain link fence insulators.

Make sure the plastic insulator you choose is molded from heavy-duty, high-density polyethylene (or harder plastic) with UV inhibitors. This prevents arcing and provides long life with all-weather performance, protecting it from the weather. Most insulators are available in yellow, black and white.



Like plastic insulators, porcelain insulators are designed to hold electrified wire near fence posts without losing energy through the post.

When good porcelain insulators are properly installed they should be able to last the life of your fence.

Porcelain insulators are a very good choice for using with your high tensile fence system.



There are specialized insulators that are used for specific purposes. These can be summarized as follows:

Tube Insulators

  • The tube clamp insulator attaches to standard tube-type stock to corral panels.

Corner Insulators

  • Corner post insulators are designed to withstand fence line tension generated by the fence line pulling from the anchor point or changing directions.
  • Corner insulators should also be used at fence line termination points.
  • Corner post insulators are available in plastic and ceramic, accommodating steel wire, polywire, polytape & polyrope.

Specialty Insulators

  • Other insulators allow you to fasten electrified wire or poly products to posts and fences without losing energy through the post or fence.
  • There are many specialty insulators to choose from:
    • Chain Link
    • Tube
    • Corner
    • U-Post
    • Square Post

Benefits and Considerations of High Tensile Fencing

High tensile fence is an excellent choice to safely contain most species of livestock, including various exotic species. It is also equally effective keeping unwanted predators, deer or other wild animals out.

High tensile is an affordable, low maintenance permanent perimeter fence, lasting over 40 years. It works as a simple barrier fence or can be electrified for greater effectiveness and animal safety.

The key to a successful high tensile fence installation is advanced planning, combined with proper tools and quality materials.

We recommend Zareba® high tensile components, which are rugged, reliable and designed to withstand harsh environmental conditions, providing long life for your fence.

Zareba® has developed high tensile videos to help design and build your high tensile system. Once you build a high tensile fence you won't want any other type of fencing system.


Expert Tips

Insulators come in many styles to accommodate a wide variety of post and wire types. Choose the correct type of insulator for the type of post and wire you've selected.

If you're using a low impedance fence charger, use an insulator with greater arcing protection, which will prevent the current from jumping to the fence post.

Porcelain insulators may be more expensive than plastic insulators, but they are designed to last a long, long time, usually the lifetime of your fence!

Plastic insulators can be used with all types of wire (and high tension if it is designated for it), while porcelain insulators can be used with all wires except for poly tape.

Corner posts and end posts have to withstand greater tension than other posts along the fence line. Therefore, use insulators at these areas that are designed to withstand the extra stress.

In addition, keep insulators free from dirt, dust and cobwebs.


FAQs About Insulators

Q: Do I need insulators for my electric fence system?

A: Insulators allow you to fasten electric wires near the posts without losing energy through the posts and potentially shorting out your system, so yes, definitely use insulators to maintain the current throughout your fence line.


Q: Which type of insulator should I use?

A: There are several factors to consider when determining which type of insulator you want for your electric fence system. These factors include the type of fence post you will be using, and the type of wire you will be using. For corners and end posts you will need to know how much tension you plan to have on the wire.


Q: Is a porcelain insulator better than a plastic insulator?

A: Porcelain insulators are used with high tensile fences as well as standard electric fences. They will last the life time of the fence and add a nice look to the fence. Their only drawback is their initial cost: Porcelain insulators usually cost more than plastic insulators.

Insulators made from plastic are generally used for standard electric fences only, although there are some designed for use with a high tensile fence.

More Insulator FAQs»

Recommended Products