What wire gauge do I need for a 100 Amp subpanel at the What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run? Ask Question Asked 6 years, 1 month ago. Active 1 year, 11 months ago. Viewed 600k times 21. 4. I am adding an attached garage to my house. What size wire for 100 amp sub-panel from a 200amp main panel? 0.When determining feeder conductor size, you'll want to consider the " lowest temperature rating of any connected termination, conductor, or device..20You need a 3-3-3-5 copper SER cable to carry 100 amps (that's three #3 gauge for the two hot wires and the neutral and a #5 gauge for the ground)..6Section 310 (7)(a) in the 2011 NEC goes on to say: "For application of this section, the main power feeder shall be the feeder between the main..1subpanel - What size wire for two 100 amp sub panelsFeb 09, 2017electrical - What size wire for 100 amp sub-panel from aJan 09, 2016See more results 100 amp fuse box | eBay Find great deals on eBay for 100 amp fuse box. Shop with confidence. Skip to main content. eBay Logo: NOS Eagle # 655 100 Amp 250 V AC Class H Cartridge Fuse Box of 4 See more like this. OEM NEW Ford Battery Cable Fuse - 100, 200 Amp Box Circuit Breaker - Less Nuts. Brand New.