12/3 Marine Wire 12/3 Marine Grade Wire,12 Gauge 100FT Triplex Cable

Perfect for my project

Good wire. Worked well.

This was perfect for my vintage camper renovation. I was starting from scratch on a tiny 10 ft camper and needed something safe and affordable that I could maneuver in tight places. This was perfect!

I used this wire in an RV application to replace undersized house type romex that was used by a professional installer when we had an battery/inverter electrical system installed in our Sprinter van. It is a major improvement over the solid conductors used in Romex. Easy to route through holes and around bends. Very easy to stip and terminate with crimp connectors and screw termination. Great wire.

Good quality wire

It's cheaper than the familiar brands of marine 12/3, which is a good thing these days... Although when the ad mentioned speaker wire as another application I raised an eyebrow and almost clicked away. It's good to realize that the insulation is much thinner than the familiar thick walled material in the marine electrical supply marketplace. The photo shows the risk -- my first strip was a failure, as you can't just score casually around it with a knife and bend it back and forth a few times. It takes caution to avoid nicking the inside wires. I'm using it in my mobile lab and it's fine, saving me about half the cost of the brand name stuff... it just has to be handled with a little more finesse then you might be used to. Take very tiny cuts and try to propagate the fracture line around the outer jacket without having to cut any deeper than necessary. Given that it follows the profile of the wire, you can't really make a straight jacket cut all the way across without risking the thin insulation of the outer wires. Photo is not how to do it! That's my own mistake, not the fault of the wire, but it does show the insulation thickness very clearly.

This wire has good primary and secondary insulation. Tested it’s flexibility after in a -15f freezer for several hours. Very flexible even cold. 30-32 amp load was pulled across 10awg 30ft run with minimal voltage drop approximately 3vac on 245volt circuit. Wire temperature went from 70f to 90f after a hour of constant load. Copper was tinned for marine use and helps with resistance. This is basically stranded romex with better insulation. No sunlight UV resistance test based on interior use. Would recommend this product.

Not a substitute. True marine grade tinned wire.