This marine grade, tinned copper primary wire, meets and exceeds the most stringent marine specification – UL Standard 1426 BC-5W2 (105°C Dry 75°C Wet). Our wire is constructed from finely stranded, Type 3 tin plated copper and is covered with a flexible and durable PVC insulation. You’ll be pleased with it’s ease of installation, clean stripping, and superior performance making this marine grade tinned primary wire your first choice for the demanding environments associated with marine installations. Great for boat, rv, automotive and other miscellaneous wire runs require a fine stranded flexible copper wire. Color may vary by dye lot.


12ft, 25ft and 50ft lengths are coils while 100ft comes on spools-multiple quantitys ordered will come on continuous run unless otherwise specified

The amperage for your installation is governed by where you install the wire but here are the ratings for under 50V as specified by the ABYC for wiring(which also matches the NEC recommended ratings for single conductors in free air at 600V or less with 105C jacket and 30C ambient air temperature)

Size AWG Continous AMP Rating Wire Size Including Insulation
Outside of Engine Space Inside of Engine Space Nominal Outside Diameter of Wire (Inches)
16 AWG 25 Amps 21 Amps .123 inch
14 AWG 35 Amps 30 Amps .138 inch
12 AWG 45 Amps 38 Amps .156 inch
10 AWG 60 Amps 51 Amps .180 inch

• Finely stranded tinned copper conductor (Type III)
• Color coded PVC insulation (See chart for specifics per gauge)
• Temperature Range: -20°C to 105°C
• Voltage Rating: 600V
• Resistant To: Acid, Alkalis, Abrasion, Flame, Gasoline, Oil, Ozone, Moisture, Fungus
• Applications: Internal wiring of electrical equipment.
Internal wiring of panels and meters
Point to point wiring

UL Standard 1426 (BC-5W2)
ABYC: E-8.14, E-9.14
Coast Guard: 33 CFR part 183

Education References About Marine Wire and Cable

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Return shipping will be paid by


All returns accepted

Returns Accepted

Item must be returned within

30 Days

Refund will be given as

Money Back

Country/Region of Manufacture

United States

Wire Gauge Size

14 AWG

Conductor Material

Fine Stranded Copper (tinned to prevent corrosion)







Copper Stranding Count

41 Strands Copper (very flexible)


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