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Electrical Panel Size Considerations

By Dave Rongey - Summary:

What size should the Main Electric Service Panel be for all the Electrical Circuits? How to Determine What Size an Electrical Panel Should Be, Factors that must be considered when sizing an electrical panel.

Electrical Service Panel

Electrical Question: What size should the Main Panel Electric Service be for all the Electrical Circuits?

This electrical wiring question came from: Mick, a Homeowner from Yuma, AZ, Arizona.

Additional Question: I’m working on a remodel project where we will be adding a laundry room with a sink and the following circuits:

Is the sub-panel power adequate at 60 amp with 6 wire?

This electrical wiring question came from Mike, in phoenix, Arizona.

Dave’s Reply:
Thanks for your electrical wiring question Mick and Mike.

Electrical Panel Size Considerations


Application: Main Electric Service Panel.
Skill Level: Advanced – Best Installed by a Licensed Electrical Contractor – Not Recommended for Homeowners.
Tools Required: Electricians pouch of hand tools and the various power tools necessary for the specific method of electrical service installation.
Estimated Time: Depends on the type of panel, the location, and available access to the project area.
Precaution: This is an extensive project. Working in an electric panel has possible arc flash hazards and should be performed by a Licensed Electrical Contractor.
Notice: Installing an Electrical Service Panel should be done according to local and national electrical codes with a permit and be inspected.

Key Factors for Electrical Panel Size

When all of these required items have been identified then the panel size can be properly determined. It would be a shame to invest your resources to construct this building and then fall short where it really matters.

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