The second type of wire you should consider is steel-sheathed cable. It’s important to note that aluminum wiring should not be used as it has been known to cause fires in some instances. This size ensures that your service will have enough power capacity to handle all of your electrical needs without overloading the system. For a 100 amp service, you’ll need 1 AWG copper wiring with three conductors (black, red and white). The first type of wire that needs to be considered is copper wire. To make this process easier, this section will break down the types of wires and their respective sizes. There are many different factors that need to be taken into account when selecting the right wire for the job. The amount of electricity required determines the size of wire needed (see also: Electric Hot Water Heater: What Size Wire Do I Need?)to provide enough current flow.įor a 100 amp service, a thick gauge wire is necessary to ensure safety and efficiency. It is determined by the amount of electricity needed for the size and type of building or vehicle as well as what appliances are used inside.

This article will provide an overview of the guidelines for selecting the right wire size for a 100 amp service, so read on to learn more! What Is Amp Service?ĪMP service is an electrical system that provides power to a building or motorhome.

100 amp service wire size aluminum