Service entrance wire must be AWG # 4 Copper wire.
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∙ 2014-10-31 23:30:523 AWG copper for typical residential applications.
Assuming the voltage is 240 volts, the wire size for a 100 amp panel at the end of 400 feet and holding the voltage drop to 3 %, the wire will be 3/0 in size.
The answer is likely NO. I assume you're talking about a 60 amp subpanel. To upgrade to a 100 amp, the wire size will need to be increased. (replaced with the correct size) This is not a job for amateurs but should be done by a qualified electrician. The typical size wire employed for a 60 amp supply is # 6 awg, whereas the minimum wire size for 100 amp is # 3 awg (which is larger).
nO.6
100 amp
A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.
2 AWG Aluminum for 100 Amp Service.
2''
1awg
3 AWG copper for typical residential applications.
4 AWG
SE #2
AWG #3 wire
Assuming the voltage is 240 volts, the wire size for a 100 amp panel at the end of 400 feet and holding the voltage drop to 3 %, the wire will be 3/0 in size.
The answer is likely NO. I assume you're talking about a 60 amp subpanel. To upgrade to a 100 amp, the wire size will need to be increased. (replaced with the correct size) This is not a job for amateurs but should be done by a qualified electrician. The typical size wire employed for a 60 amp supply is # 6 awg, whereas the minimum wire size for 100 amp is # 3 awg (which is larger).
Service entrance wire size is AWG # 3 copper.
A 100 amp residential panel requires that you use AWG # 3 service entrance wire.