A cheaper wiring alternative for your 600w or smaller ColemanSunforce wind turbine. The turbine requires a 3 conductor cable as it is a 3-phase AC connection between the turbine and the charge controller (at the battery bank). It varies from 5-75volts AC. If it was 60hz then 600w would be between 5-6 amps on each conductor. This 10 gauge extension cable is 44 cheaper than buying 10-3 NMD or other single conductors.