Sea-Dog 10 AWG Dark Blue Marine Primary Wire 100ft

This is the wire you reach for when you're running higher-current DC circuits on a boat and you want it done right. Sea-Dog's 10 AWG primary wire uses a stranded, tinned copper conductor. That tin coating is the whole point out here. Bare copper corrodes fast once salt air and bilge moisture get to it, and corroded strands mean voltage drop and heat. Tinned copper shrugs that off and keeps carrying current for years.

You get a full 100-foot spool, which is plenty for a rewire, a windlass feed, a bilge pump run, or several shorter circuits with wire to spare. The dark blue jacket lets you color-code your system so the next person into the panel, maybe you a few seasons from now, can actually trace what goes where. Pick a scheme and keep it consistent across the boat and troubleshooting gets a lot less painful.

The conductor is stranded rather than solid, so it flexes and routes cleanly behind the dash, through conduit, and around the tight bends you always end up making in a real install. Stranded wire also handles the constant vibration and flex of a boat far better than solid, which can work-harden and crack over time. The PVC insulation stands up to the wet, oily conditions down in the bilge and engine bay. And because it's UL and ABYC certified, it meets the standards surveyors and insurers look for on marine DC wiring.

Ten gauge is a common choice for circuits pulling more amperage than a lighting run, think pumps, blowers, accessory feeds, and moderate-length battery leads. If you're not sure a given circuit needs 10 AWG, size it against the load and the run length using an ABYC ampacity chart. Remember that voltage drop on a long run matters as much as raw ampacity, so measure the full distance out and back before you commit. When in doubt, going one size heavier never hurt anybody. Give us a call and we'll help you sort it out.