100 amp service wire size aluminum code#

Typically, a cable is used but it is acceptable to pull individual wires. ***above table is in AWG/KCMIL Standard Panels Require 3-Wires From Meterįor a standard home electrical panel there is a total of 3 wires installed from the meter base. It is important to note that you DO NOT use a main bonding jumper if the panel being installed is a subpanel. This bonds the panel to the neutral/ground bar. There will be a green screw that needs to be installed called the main bonding jumper. Conduit Type, Voltage Drop, and 3-phase PowerĪ 200-amp service must have a #4 AWG copper wire or a #2 AWG aluminum wire running from the grounding electrode system to the main power panel.Pros And Cons Between Copper And Aluminum.Standard Panels Require 3-Wires From Meter.***above table is in AWG/KCMIL What else is in this 200-amp wire size guide? We also encourage you to read our guide on wire sizing for breakers (15 to 50 amps). As an electrician, I can’t express how important it is to have the proper size wire and the proper grounding for performance and safety!Ĭheck out our table below on the proper wire size for 200-amps (and other amperages) and keep reading for more information. They also know all the national and local electrical codes that need to be followed and permits that need to be obtained. However, a licensed electrician should be the one to size the service cable due to a variety of factors that needs to be considered.

100 amp service wire size aluminum code#

The National Electrical Code requires a minimum of 2/0 AWG for copper wire and 4/0 aluminum wire or copper-clad wire when installing a 200-amp panel.