Webi currently have a 50 amp sub panel in my guest house. I need to upgrade to a 100 amp panel. The main panel is a 200 amp panel about 300 feet away from the sub. That means that you can install a subpanel of up to 200 amps of a 100. Webmost of the reviews mention running it for a 100a subpanel or for like a modular home. The specs are listed as 100a max. I was under the impression however that you have to use. I plan to install a 100 amp circuit breaker in the house panel. The run to the garage, lug to. You’ll want to make sure that the amperage rating for an electrical. Webadding a 100 amp subpanel in the basement, will be about 80 feet from the main panel. It's purpose is expansion and centralization of the utility room in a house. Webso be mindful of everything needing power and choose the amperage rating that suits your needs for power and safety. Webfor sending 100 amps current 150 feet away, we need a wire with at least 162. 5 ampacity. If you consult the wire gauge chart, you see that the #0 wire can handle 150 amps. Webfor example, if you use a 90a feed breaker and 2 awg aluminum wire, you can feed a 100a (or 200a!) panel. Larger capacity (current) panels are also larger capacity. We usually use copper in the field & i knew off hand that i could use #3 awg,.
