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6AWG copper wire would be the minimum because that a 60A subpanel but with a 105ft distance you have too lot voltage drop and need come go approximately 4AWG copper to store the voltage drop in ~ acceptable boundaries (usually 5%).


The National electric Code publication / write-up 110.14 (c)(1) identifies temperature limitations for circuits and also feeders that 100 amp or less. If the circuit is 100 amp or less you need to size the conductors based upon the 60-degree celsius obelisk unless the breaker and the tools terminations space rated for 75 or 90 degrees.
You have to use a #4 conductor to feed a 60 amp circuit.

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What size wire required for 100a subpanel 120ft far from home sub panel? greatest amp draw will be a home window A/C unit, and a pool pump
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