answersLogoWhite

0

What gauge wire for 100 amps?

User Avatar

Anonymous

12y ago
Updated: 12/11/2022

120/240 single phase dwelling NEC 310.15(B)(6)

#4 copper or #2 Al

otherwise, NEC 310.16

#3 copper THHN or #1 Al THHN

2/0 Aluminum. <<>> A #3 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 100 and 115 amps respectively. A #1 aluminum conductor with an insulation factor of 75 or 90 degrees c is rated at !00 and 115 amps respectively.

User Avatar

Sheldon Lynch

Lvl 9
2y ago

What else can I help you with?