Exterior rated panel box required?

[Neal Lewis]

There is a new circuit breaker panel box in this screen porch in the enclosed cabinet at the rear left, adjacent to the basement wall. There is a window next to the panel box, but the rest of the outside walls are screened only. Is a panel box rated for exterior use required here?

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[Marc]

There is a new circuit breaker panel box in this screen porch in the enclosed cabinet at the rear left, adjacent to the basement wall. There is a window next to the panel box, but the rest of the outside walls are screened only. Is a panel box rated for exterior use required here?

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My guess is 'no'. It's a damp location because of the openings but not a wet location because rain will not contact it. Only enclosures in wet location are required to be weatherproof.

Marc

[Jim Katen]

There is a new circuit breaker panel box in this screen porch in the enclosed cabinet at the rear left, adjacent to the basement wall. There is a window next to the panel box, but the rest of the outside walls are screened only. Is a panel box rated for exterior use required here?

No. A regular Type 1 enclosure is probably fine. It won't be exposed to liquids or splashing, or rain, snow, or sleet.

Of course, the panel shouldn't be in that cabinet in the first place.