100 AMP SUB PANEL WIRE SIZE CHART HOW TO
100 AMP SUB PANEL WIRE SIZE CHART CODE

Generally, most people tend to have a 100 amp sub panel in their house which can provide them with 24,000 watts at 240 Volt. If you do not choose the right sized wire, it can cause a burn to the circuit and even damage to the household appliances as well. Generally, it is important to choose the right size wire for the electrical works so that the wire can help you to provide proper electric output to your house.

100 AMP SUB PANEL WIRE SIZE CHART HOW TO

How to determine a 100 amp sub panel wire size? In addition to that, you might need to increase the amps by 20% for every 100 feet of distance from the sub-panel because the voltage can inevitably drop in the circuit.įollowing the NEC rule for the 100 amps, the sub-panel will help you to determine the right type of wire for it. It is highly recommended to maintain maximum loading for any branch circuit that should not be more than 80% of the ampacity. Generally, the 4 AWG can handle 85 amps of power supply.

100 AMP SUB PANEL WIRE SIZE CHART CODE

The National Electric Code for the Wire used in 100 amps subpanel should hit 80% of the requirement. Generally, there are a few factors that are needed to be determined when you choose the wire size for the 100 amps subpanel.

That is why you’ll need a #2 gauge wire for both aluminum and copper-clad aluminum wire to power up a 100 amps sub panel easily.įollowing the NEC or national electric code, the rule is important when installing a 100 amps sub panel in your house because the NEC rule will be able to provide you with the right sized wire and amperage it to operate with the sub panel.īelow is a brief discussion on what the NEC rule describes when it comes to choosing the right sized wire for a 100 amps sub panel: NEC code for wire size: In addition to that, the aluminum wiring requires a larger diameter wire. However, some people recommend using the #2 AWG aluminum wire for the 100 amps sub panel because it has a lower conductivity than copper wires. The wire must go inside a minimum of 1.25 inches, and schedule 40 or 80 PVC electric conduits for underground service. When installing the #4 AWG copper wire in the sub panel, you should take the necessary steps to secure the wire from any unwanted occurring. Generally, these two wires have the amperage and Gauge rating that is ideal and suitable for the sub panel. However, the ideal and recommended wires for the 100amp sub panel to power up a medium-sized house is the #4 AWG or #2 AWG aluminum wire. There is a variety of wires available to use in a 100 amp sub panel. Generally, the NEC rule indicates that the wire should not hit more than 80% of its electric supply.Ĭonsidering that, you need to follow the rules and regulations properly to power your house using a 100 amp sub panel. The NEC rule provides us with the proper guideline regarding any electrical work and eases the effort. In addition to that, you should always follow the NEC rule when choosing the wire for a sub-panel.

You need to choose the right type of wire for your electrical sub panel.īecause choosing the wrong wire may not be able to suit the electric flow and cause a lot of nuisances. Generally, wiring is one of the most essential parts of electrical work that is being done to ensure proper power supply throughout the house. You should make sure that the wire you are using to run 100 amps up panel should be sufficient to the amperage of the sub panel to provide you with proper electricity flow. Generally, the wire that is suitable to run a 100amp subpanel is #4 copper wires or #2 aluminum wires. Generally, a 100 amp sub panel requires #4 copper wires or #2 aluminum wires.

When choosing the wire for a 100 amp subpanel, you need to make sure that the wire gorge is sufficient for the amperage of the sub panel. Generally, the #4 AWG has 85A ampacity but should conduct at most 68 amps. It is ideal to wire the circuit to hit 80% ampacity. When running the subpanel, you should never put the circuit under 100% ampacity.

100 amp sub panel wire size chart