Panelboard Air Gap

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The distance from the back of a cabinet that holds a panelboard to a wall in a damp or wet location needs to be 1/4" for an air gap.

Take a look at 312.2.

Chris
 
There are usually dimples on the mounting holes that make this compliant without adding anything to the mounting.
 
tkb said:
There are usually dimples on the mounting holes that make this compliant without adding anything to the mounting.
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Agreed, cabinets that are listed for use in damp and wet locations will usually have the dimples on the back of the box to provide the air gap.

Chris
 
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