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Part Number: TFN 18 1

18 Gauge TFFN Wire

Our TFN 18 1 wire is 18 gauge and is part of our Hook Up Wire / Lead Wire line. TFN 18 1 has a soft drawn 18 gauge bare copper conductor, PVC insulation, and a nylon jacket. Having a conductor stranding of solid, this wire weighs approximately 7 lbs/MFT and has an ampacity of 6 at 90°C This wire has a voltage rating of 600 volts and a temperature rating of 90°C. TFN is a general-purpose wire in accordance with the NEC and it rated as building wire for installation in conduit and other recognized raceways. It can also be used for wiring machine tools, appliances, and control circuits.

Looking for Dog Fence Wire? 

Electronic dog fences are becoming more and more popular instead of leashes and unsightly traditional fences. If you're a DIYer, the idea of equipping your yard with an electronic fence to keep your dogs safe is great.

But how do you make one? What do you even use?

There are several brands of electronic fencing you can find in the market, and some will provide you with a certain amount of wire to start. But what if yours doesn't? Or you have a larger yard to cover? No matter what brand system you have, the same type of wire can be used.

These are the most important things to remember when choosing wire for an electric dog fence:

  • It must be a single insulated solid wire, meaning only one solid conductor surrounded by insulation. You can't use a cable with 2 conductors, shielding, or coaxial cable. A stranded wire will work as dog fence wire, but this can lead to strands breaking during installation so a solid conductor is best.

So What's the Best Option to Use for Dog Fence Wire?

The best type of wire to use for electronic dog fences is TFN Building and Fixture Wire. It is made with a single, soft drawn bare copper conductor and PVC insulation with a Nylon jacket. It is rated for use indoor or outdoor use. In laymen's terms, that means a general-purpose wire used in machine tools, appliances and control circuits. It also means that it is used for a lot of applications, including dog fences. The two most common gauges to choose from are 16 AWG and 18 AWG.

  • 16 Gauge is the thickest option with the strongest signal, so it will support the widest boundary size. But it can be more expensive and less flexible.

  • 18 Gauge is thinner, and more flexible than the 16 gauge, but can still carry a strong signal.

The best wire to use for dog fences is the 18 gauge wire: TFN 18 1, which is the specific part number for solid, single (1) conductor 18 gauge (AWG) TFN fixture or building wire.

Can I Purchase Any Brand of Wire to Replace Damaged Sections to my Existing Fence?

Any single insulated wire, rated for outdoor use can be used. It doesn't matter what brand it is, as long as the wire is rated to withstand the environment you will be putting it in. However, there is an important rule of thumb to remember when selecting replacement wire for an existing dog fence: choose the gauge you already have if you can, or get as close as possible. While you can splice different gauges together, the fence boundary won't be consistent all the way around since thicker wire has wider boundaries.

TFN 18 1 | Fixture Wire from Allied Wire & Cable Specifications: (subject to change without notice)
AWG Size 18
Conductor Stranding Solid
No. of Strands 1
No. of Cond. 1
Cond. Material Bare Copper
Insul. Material Polyvinylchloride (PVC)
Nom. Insul. Thick. (in) 0.015
Jacket Material Nylon
Jacket Thick 0.004
Nom. O.D. (in) 0.0780
Max. Temp 90°C
Ampacity @ 90°C 6
UL Style TFN, 1316, 1408, 1452
CSA Type AWM I A/B, TWEN
Approx LBS/MFT 7.00
Copper LBS/MFT 5
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LengthPriceColorDescriptionComment
186 FT$5.78BlackTFN 18 1Add To Cart
355 FT$11.03BlueTFN 18 1Add To Cart
400 FT$12.43BlueTFN 18 1Add To Cart
400 FT$12.43BlueTFN 18 1Add To Cart
500 FT$15.54BlueTFN 18 1 6/9 Blue with White StripeAdd To Cart
200 FT$6.21GreenTFN 18 1Add To Cart
340 FT$10.57GreenTFN 18 1Add To Cart
109 FT$3.39GreyTFN 18 1Add To Cart
117 FT$3.64GreyTFN 18 1Add To Cart
160 FT$4.97GreyTFN 18 1Add To Cart
160 FT$4.97GreyTFN 18 1Add To Cart
175 FT$5.44GreyTFN 18 1Add To Cart
200 FT$6.21GreyTFN 18 1Add To Cart
210 FT$6.53GreyTFN 18 1Add To Cart
266 FT$8.27GreyTFN 18 1Add To Cart
300 FT$9.32GreyTFN 18 1Add To Cart
320 FT$9.94GreyTFN 18 1Add To Cart
350 FT$10.88GreyTFN 18 1Add To Cart
360 FT$11.19GreyTFN 18 1Add To Cart
420 FT$13.05GreyTFN 18 1Add To Cart
430 FT$13.36GreyTFN 18 1Add To Cart
450 FT$13.98GreyTFN 18 1Add To Cart
465 FT$14.45GreyTFN 18 1Add To Cart
290 FT$9.01OrangeTFN 18 1Add To Cart
300 FT$9.32OrangeTFN 18 1Add To Cart
125 FT$3.88VioletTFN 18 1Add To Cart
130 FT$4.04VioletTFN 18 1Add To Cart
150 FT$4.66VioletTFN 18 1Add To Cart
195 FT$6.06VioletTFN 18 1Add To Cart
200 FT$6.21VioletTFN 18 1Add To Cart
210 FT$6.53VioletTFN 18 1Add To Cart
234 FT$7.27VioletTFN 18 1Add To Cart
264 FT$8.20VioletTFN 18 1Add To Cart
295 FT$9.17VioletTFN 18 1Add To Cart
305 FT$9.48VioletTFN 18 1Add To Cart
380 FT$11.81VioletTFN 18 1Add To Cart
385 FT$11.96VioletTFN 18 1Add To Cart
400 FT$12.43VioletTFN 18 1Add To Cart
430 FT$13.36VioletTFN 18 1Add To Cart
125 FT$3.88WhiteTFN 18 1Add To Cart
135 FT$4.19WhiteTFN 18 1Add To Cart
300 FT$9.32WhiteTFN 18 1Add To Cart