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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
140 FT$5.80BlackTFN 18 1Add To Cart
140 FT$5.80BlackTFN 18 1Add To Cart
150 FT$6.21BlackTFN 18 1Add To Cart
150 FT$6.21BlackTFN 18 1Add To Cart
186 FT$7.71BlackTFN 18 1Add To Cart
190 FT$7.87BlackTFN 18 1Add To Cart
200 FT$8.29BlackTFN 18 1Add To Cart
200 FT$8.29BlackTFN 18 1Add To Cart
273 FT$11.31BlackTFN 18 1Add To Cart
300 FT$12.43BlackTFN 18 1Add To Cart
310 FT$12.84BlackTFN 18 1Add To Cart
322 FT$13.34BlackTFN 18 1Add To Cart
335 FT$13.88BlackTFN 18 1Add To Cart
370 FT$15.33BlackTFN 18 1Add To Cart
395 FT$16.37BlackTFN 18 1Add To Cart
425 FT$17.61BlackTFN 18 1Add To Cart
470 FT$19.47BlackTFN 18 1Add To Cart
105 FT$4.35BlueTFN 18 1Add To Cart
130 FT$5.39BlueTFN 18 1Add To Cart
170 FT$7.04BlueTFN 18 1Add To Cart
219 FT$9.07BlueTFN 18 1Add To Cart
230 FT$9.53BlueTFN 18 1Add To Cart
400 FT$16.57BlueTFN 18 1Add To Cart
415 FT$17.19BlueTFN 18 1Add To Cart
480 FT$19.89BlueTFN 18 1Add To Cart
480 FT$19.89BlueTFN 18 1Add To Cart
500 FT$20.72BlueTFN 18 1 6/9 Blue with White StripeAdd To Cart
177 FT$7.33GreenTFN 18 1Add To Cart
200 FT$8.29GreenTFN 18 1Add To Cart
230 FT$9.53GreenTFN 18 1Add To Cart
340 FT$14.09GreenTFN 18 1Add To Cart
340 FT$14.09GreenTFN 18 1Add To Cart
475 FT$19.68GreenTFN 18 1Add To Cart
109 FT$4.52GreyTFN 18 1Add To Cart
117 FT$4.85GreyTFN 18 1Add To Cart
131 FT$5.43GreyTFN 18 1Add To Cart
160 FT$6.63GreyTFN 18 1Add To Cart
160 FT$6.63GreyTFN 18 1Add To Cart
175 FT$7.25GreyTFN 18 1Add To Cart
200 FT$8.29GreyTFN 18 1Add To Cart
266 FT$11.02GreyTFN 18 1Add To Cart
269 FT$11.15GreyTFN 18 1Add To Cart
300 FT$12.43GreyTFN 18 1Add To Cart
320 FT$13.26GreyTFN 18 1Add To Cart
350 FT$14.50GreyTFN 18 1Add To Cart
350 FT$14.50GreyTFN 18 1Add To Cart
360 FT$14.92GreyTFN 18 1Add To Cart
375 FT$15.54GreyTFN 18 1Add To Cart
389 FT$16.12GreyTFN 18 1Add To Cart
400 FT$16.57GreyTFN 18 1Add To Cart
400 FT$16.57GreyTFN 18 1Add To Cart
420 FT$17.40GreyTFN 18 1Add To Cart
425 FT$17.61GreyTFN 18 1Add To Cart
430 FT$17.82GreyTFN 18 1Add To Cart
445 FT$18.44GreyTFN 18 1Add To Cart
450 FT$18.64GreyTFN 18 1Add To Cart
290 FT$12.02OrangeTFN 18 1Add To Cart
400 FT$16.57OrangeTFN 18 1Add To Cart
462 FT$19.14OrangeTFN 18 1Add To Cart
175 FT$7.25RedTFN 18 1Add To Cart
180 FT$7.46RedTFN 18 1Add To Cart
185 FT$7.66RedTFN 18 1Add To Cart
310 FT$12.84RedTFN 18 1Add To Cart
333 FT$13.80RedTFN 18 1Add To Cart
425 FT$17.61RedTFN 18 1Add To Cart
122 FT$5.05VioletTFN 18 1Add To Cart
130 FT$5.39VioletTFN 18 1Add To Cart
150 FT$6.21VioletTFN 18 1Add To Cart
167 FT$6.92VioletTFN 18 1Add To Cart
170 FT$7.04VioletTFN 18 1Add To Cart
170 FT$7.04VioletTFN 18 1Add To Cart
171 FT$7.08VioletTFN 18 1Add To Cart
195 FT$8.08VioletTFN 18 1Add To Cart
200 FT$8.29VioletTFN 18 1Add To Cart
200 FT$8.29VioletTFN 18 1Add To Cart
210 FT$8.70VioletTFN 18 1Add To Cart
230 FT$9.53VioletTFN 18 1Add To Cart
234 FT$9.70VioletTFN 18 1Add To Cart
264 FT$10.94VioletTFN 18 1Add To Cart
265 FT$10.98VioletTFN 18 1Add To Cart
290 FT$12.02VioletTFN 18 1Add To Cart
295 FT$12.22VioletTFN 18 1Add To Cart
300 FT$12.43VioletTFN 18 1Add To Cart
305 FT$12.64VioletTFN 18 1Add To Cart
320 FT$13.26VioletTFN 18 1Add To Cart
370 FT$15.33VioletTFN 18 1Add To Cart
375 FT$15.54VioletTFN 18 1Add To Cart
380 FT$15.74VioletTFN 18 1Add To Cart
385 FT$15.95VioletTFN 18 1Add To Cart
400 FT$16.57VioletTFN 18 1Add To Cart
415 FT$17.19VioletTFN 18 1Add To Cart
430 FT$17.82VioletTFN 18 1Add To Cart
125 FT$5.18WhiteTFN 18 1Add To Cart
135 FT$5.59WhiteTFN 18 1Add To Cart
136 FT$5.63WhiteTFN 18 1Add To Cart
205 FT$8.49WhiteTFN 18 1Add To Cart
215 FT$8.91WhiteTFN 18 1Add To Cart
318 FT$13.18WhiteTFN 18 1Add To Cart
335 FT$13.88WhiteTFN 18 1Add To Cart
410 FT$16.99WhiteTFN 18 1Add To Cart
460 FT$19.06WhiteTFN 18 1Add To Cart
490 FT$20.30WhiteTFN 18 1Add To Cart
242 FT$10.03YellowTFN 18 1Add To Cart