Fi-Shock® 200 ft, 12 1/2 Gauge, Insulated Cable

Model #: 500-552

3 reviews
0 5 4.7

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  • Use to link fencing above or below ground
  • Sleeve features non-conductive high-density polyethylene
  • 200 ft of cable on a spool
  • Sleeve wraps and insulates 12½ gauge wire
  • Wire is 170,000 psi
  • Class III galvanized wire


Fi-Shock® 200 Foot 12½ Gauge Insulated Cable

Fi-Shock® 200 Foot 12 ½ Gauge Insulated Cable can be used above or below ground for all your electric fencing needs.
This insulated wire includes a non-conductive, high-density polyethylene sleeve surrounding a 12½ gauge, 170,000 psi, Class III galvanized wire. The 200-foot length of cable comes on a spool to make payout easy.

  • Use to link fencing above or below ground
  • Sleeve features non-conductive high-density polyethylene
  • 200 ft of cable on a spool
  • Sleeve wraps and insulates 12½ gauge wire
  • Wire is 170,000 psi
  • Class III galvanized wire

Fi-Shock® Means Leadership in Electric Fence Systems for Animal Containment and Control. Fi-Shock® provides safe, secure, superior quality electric fence products for all your fencing needs.

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Fi-Shock® 200 ft, 12 ½ Gauge, Insulated Cable - Specifications

  • For above ground or below ground use
  • Made of non-conductive high-density polyethylene
  • 200 foot spool of cable
  • Cable surrounds a 12.5 gauge wire
  • Wire is 170,000 psi
  • Class 3 galvanized wire

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
May 30, 2019
I would buy from Zareba and this product again! By Pat

I was very pleased with my purchase of 12.5 gauge insulated cable for the grounding system of my electric fence. I called Zareba with a question and received immediate, accurate advice which I greatly appreciate!! The quality of the cable was excellent!

Review Rate
Review posted on
May 23, 2019
Great service & product! By Pat

I am quite pleased with the 12.5 gauge, insulated cable I purchased. I also called and received good advice from their customer service center before making my purchase.

Review Rate
Review posted on
May 1, 2018
Strong ground for sure... By Keith

Works exactly as intended and creates a strong ground with the galvanized 8 ft grounding rods.

Read All Reviews (3) Write a Review
Q.Hi, Would you please clarify- I want to link two wire fence sections located 100ft away. First section is 35ft long. The beginning of that 35ft section is connected to Sereba 25mi wire charger and GND rod. The end of this 35ft section will be connected to second, 15 ft long wire section, located 100 ft away using underground 12.5GA insulated wire. Can I do it? Thanks, Alex

Based on your description of your two sections of fence, connecting them with 12.5GA insulated wire underground is possible. For further assistance, please call us at 1-855-592-7322. 

Q.What is the voltage rating on this cable? Is it good for use with an A/C energizer that requires a 20,000 volt rating?

Yes, this wire can be used with high voltage energizers.

Q.My fence specs call for double insulated wire. Is this double insulated?

This wire is not double insulated.

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All About


Features and Benefits

Steel wire is a basic, economic wire

Carries charge long distance with extensions

Can use with any type of charger

Ideal Uses

Semi-permanent fencing

Permanent fencing

Perimeter fencing


Galvanized steel wire will last the lifetime of the fence and is the most commonly used wire.

Note: Steel wire can by used with any type of charger and when connected properly to like wire extensions, this wire can carry a charge for very long distances.


Expert Tips


The height and spacing of the wires will vary with the animal you are containing. Position one electrified wire at animal’s shoulder height; this will cause it to hit the fence with its nose, making it back up.


Use poly tape for horse fencing or in rotational grazing since the animals can easily see this highly visible electric fence wire. Splice poly tape with splicer buckles specially designed for easy splicing and repairing of poly tape.


Poly wire is lightweight, so it is very easy to handle. You can rewind it very easily, move it and re-use it. Splice poly wire by tying a good, tight knot to maintain connections. Use a poly wire line tightener on each line and each side of the fence to maintain wire tension.


Also highly visible, this electric poly rope is also used for horses and livestock. When repairing poly rope, use a splicer designed for poly rope, to maintain a good electrical connection.


Use a low impedance fence charger with poly wire and poly tape products.


For a permanent perimeter fence, you may want to use high tensile or steel wire as your fence wire.

More Expert Tips About Fence Wire»

Fence Wire FAQs

Q: Why is poly tape better for use with horses than regular wire?

A: It's a matter of visibility. Horses can see the tape more readily than wire. Remember, electric fencing is a psychological barrier: after a horse has met up with a poly tape electric fence and has felt the shock, when it sees the poly tape again, it will remember the shock and stay away from the fence.


Q: Why should I place one wire at the animal's shoulder?

A: Positioning one electrified wire at animal’s shoulder height will cause the animal to hit the fence with its nose, making the animal back up. See illustration below.


Q: What is the advantage of using high-tensile wire rather than aluminum wire?

A: High tensile wire is designed to be both a psychological barrier and a physical barrier. High tensile wire not only carries a shock, it is also sturdy enough to prevent a large bull from penetrating the fence line (as long as it has been installed correctly.)

In addition, aluminum wire can stretch out over time as tension is applied to it (very slowly). High tensile wire will not stretch; this affordable barrier can last for many, many years.

More FAQs about Fence Wire»

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