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Ancor — Marine Wire, Cable & Terminals

Ancor makes the wire and connections that every other piece of a boat's electrical system depends on: tinned copper primary wire, battery cable, duplex and multi-conductor cable, heat shrink terminals, heat shrink tubing, and the tools to put them together. When we rewire a boat, this is the material that goes behind the panel.

Why Tinned Wire Matters on a Boat

Bare copper wire corrodes in salt air. The green corrosion creeps up inside the insulation, raises resistance, and turns a good connection into a hot one. Tinned copper wire has each strand coated, which slows that corrosion down. Marine wire is also finely stranded so it holds up to vibration better than solid or coarse-stranded wire. Pair it with heat shrink terminals and the crimp is sealed against moisture as well.

Rewiring & Electrical Repairs

Good wire only helps if it's sized for the load and the run length, protected at the source, supported along its run, and terminated with the right crimp. We rewire circuits, run new battery cable, and rebuild DC systems using Ancor wire and terminals. Contact us for a wiring repair or upgrade on your boat.

Ancor FAQ

What size wire do I need?

Wire size depends on the current the circuit carries, the total length of the run (out and back), and how much voltage drop the equipment can tolerate. Long runs often need a larger wire than the current alone suggests. If you're not sure, call us with the load and run length.

What do the wire colors mean?

ABYC uses color codes so the next person can trace a circuit: red for DC positive, black or yellow for DC negative, and green (or green with a yellow stripe) for DC grounding and bonding, with other colors assigned to specific circuits. Use the colors consistently and label both ends. Shop primary wire.

Do I need heat shrink terminals?

On a boat, they're the better choice. The adhesive lining seals the crimp against moisture, which keeps corrosion out of the joint. They only work if the crimp is made with the right tool and then heated evenly. Shop terminals and crimp tools.

Can you rewire my boat?

Yes. We handle wiring repairs and full rewires throughout Annapolis and the Chesapeake Bay. Call (410) 263-0807 or contact us.

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