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What is a sub panel?
A sub-panel is always fed from a main panel. The main panel is situated where the electrical service wiring first enters the main structure on a dwelling plot or building site.A sub-panel can be situated within the same building as the main panel or it can be in a subsidiary building or structure (such as a garage, garden shed or workshop) that is separate from the main building.More informationA sub-panel is another name for a secondary breaker box, just as "the main panel" is another name for "the main breaker-box"."Breaker-box" and/or "panel" are just alternative short names that are used instead of the full name "circuit breaker box".
When would you want to upgrade the main electrical panel vs just adding a sub-panel?
Depending on how many breakers you have in your exisiting panel if you only have a old 6 or 8 circuit panel then I would suggest a new panel, In the newer building world where you have a 20 or 30 circuit panel then I would suggest a sub panel.
What is PCC panel?
power control center panel
Can you install electrical panel in closet?
No, there has to be a three foot clearance in front of the panel. This is so that electricians can work safely on the panel.
Can the electrical panel be installed above a base kitchen cabinet or does the floor space in front of the panel have to be open?
No, you should not install anything in front or below the panel. You must have 36" of free space in front of the panel and 30" on either side of the panel.
