What Size Wire Do I Need for a 50 AMP Breaker?

Answer

Determining the proper size of electrical wiring depends on the voltage and current it must carry for service. A 50 amp circuit requires a #6 gauge wire if copper and #4 gauge wire is aluminum is used. If a length of more than 100 feet is required, the next step up in wire size should be used.
Q&A Related to "What Size Wire Do I Need for a 50 AMP Breaker?"
# 8 awg (american wire gauge) wire minimum, although #6 is preferred.
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1. Turn off the main service disconnect and remove the cover to the service panel. Install the new circuit breaker. This breaker, depending on the make and model of panel that you
http://www.ehow.com/how_6369856_wire-50_amp-double...
You would have to run #4 AWG copper wire to stay within
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with 3 phase you would have a little less than 60 amps (59.048 amps to be exact) so you need a 60 amp breaker with #6 copper wiring. You can in theory get a feed from a 3 phase sub
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