Marine Primary Wire
Individual Conductor
16, 14, 12, 10 AWG Available
Red and Black Available
$0.40 – $71.82
Marine Primary Wire
Individual Conductor
16, 14, 12, 10 AWG Available
Red and Black Available
Fast Shipping
Expert Support
Easy Returns
Tinned Marine Wire is made specifically for use in the harsh boating environment. All our Marine wire is genuine UL 1426/UL 1015 rated boat wire.
Red (for positive) and Black (for negative) are available, use the drop down menu above to select color and length. 25ft and 50ft lengths come coiled up, 100ft, and 250ft comes on spools. All wire is sold as one continuous length.
There are three factors when choosing the right wire gauge:
ABYC says that non-critical loads like a livewell, or courtesy lights should have no more than a 10% voltage drop, while critical loads like a bilge pump or navigation lights should have no more than a 3% voltage drop.
Remember, length of the run is a “round trip”… so from the battery, out to the load and back. Example calculations are below the table.
Example 1:
Your livewell pulls 6A. There is 10 feet from the battery to the switch panel, then 5 more feet from the switch panel to the console livewell.
Length of run is 10 + 5 + 5 + 10 = 30ft (from battery to load, and back again)
On a livewell a 10% voltage drop is acceptable, so we use the top table. We’ll round up the 6A, to 10A, and use 14AWG wire.
Example 2:
Your LED navigation lights pull 3A. There is 10ft from the battery to the switch panel, then 14ft of wire from the switch panel to the lights.
Length of run is 10 + 14 + 14 + 10 = 48ft (from the battery to load, and back again)
Navigation lights are critical, so only 3% voltage drop is allowed, so we use the bottom table. We’ll round the 3A up to 5A, and 48ft up to 50ft, and use 10 AWG wire.
Full chart below. Use the 105°C rating… most often the column for outside engine spaces. Current ratings of the wire we carry, non-bundled, outside engine spaces is:
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Thomas Rines (verified owner) –
I think your website is awesome and I chuckled at some of the comments. I also thought your prices were good and the delivery time could’t have been better. Very happy and will be telling friends and purchasing more soon.
Tom Maynard (verified owner) –
Got what I wanted. Easy, quick, clear, honest. Good job.
Bill Carey (verified owner) –
Speedy delivery
Jay Maiden (verified owner) –
Website is well laid out and easy to navigate. Needed help wiring my bilge pump to the new rocker switch. Video was very easy to understand and helped me tremendously.
John Smith (verified owner) –
The 16AWG marine grade wire is extra flexible. Customer service was quick to reply to my product spec questions.
Stephen Williams (verified owner) –
Customer service is AUsome, at this time can’t think of any thing I would recommend improving. Top notch
David Allen (verified owner) –
Website worked well and product was shipped quickly and arrived promptly.
Richard Findlay (verified owner) –
Very high strand count and tough insulation.
Michael Tate (verified owner) –
Wire and switches both of high quality… just as advertised. Found your website logically laid out, easy to navigate and view products
Ronald Williams –
Looks like top quality. It should work very good in my boat. Very easy to navigate and I received the order within days.
Leon Carrar –
Good quality. Great customer service