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18 AWG Stranded TFFN Building Wire


Product Details

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Type TFFN or MTW or AWM may be used as fixture wire, machine tool wiring, or appliance wiring material as specified in the 2008 National Electrical Code. When used as Type TFFN, conductor is suitable for use at temperatures not to exceed 90°C. When used as Type MTW, conductor is suitable for use in wet locations or when exposed to oil or coolant at temperatures not to exceed 60°C or dry locations at temperatures not to exceed 90°C (with ampacity limited to that for 75°C conductor temperature per NFPA 79). Conductor temperatures not to exceed 105°C in dry locations when rated AWM and used as appliance wiring material. Voltage for all applications is 600 volts.

UL Standard 66
National Electrical Code
RoHS Compliant

Type TFFN or MTW or AWM copper conductors are annealed (soft) copper, insulated with a tough, heat and moisture resistant polyvinyl chloride (PVC), over which a nylon (polyamide) jacket is applied.


Size: 18 AWG
Number of Strands: 16
Vinyl Insulation Thickness: 0.015 inches
Nylon Jacket Thickness: 0.004 inches
Outside Diameter: 0.085 inches
Weight: 0.012 lbs per ft
Allowable Ampacity: TFFN - 6 Amps / MTW - 7 Amps


*Data provided on this page is subject to change based on different manufacturers variances.

More Information
Cable TypeTFN/TFFN-2
Wire Size18 AWG
# of Conductors1 Conductor
O.D. (Inches)0.085
Ampacity 6
Temp. Rating90°C
Insulation MaterialPVC - Polyvinyl Chloride
Jacket MaterialNylon
StandardsUL Listed, RoHS Compliant
FeaturesOil & Gas Resistant, Heat Resistant, Moisture Resistant, Abrasion Resistant