Copper Wire

Determine whether you need bulk copper wire or wiring harnesses Bulk copper is used by manufacturers that are able to integrate copper wire into their manufacturing whereas harnesses are already made and ready to install.

I recommend:  Get a quote on copper wire pricing at MWS Wire. If you need wiring harnesses that are already made, EZ Wiring specializes in pre-wired fuse block kits.

Choose between round and square copper wire Round wire is cheaper, but square wire can save valuable space in applications where the wire needs to be routed around a corner. Square wire also has a tighter configuration when coiled.

I recommend:  Compare copper wire prices between round and square wire at Hagstoz. If you need copper wire in other shapes, Radcliff Wire specializes in shaped wire.

Determine the size and source of your copper wire The size of copper wire is usually determined by its electrical requirements with more current requiring thicker wire. Buy copper wire from manufacturers specializing in a particular application.

I recommend:  Use the chart at Powerstream to determine your wiring requirements based on electrical capacity. Ducker Worldwide manufactures copper wire primarily for electrical systems in vehicles.