Electrical Enclosure Ratings: NEMA
Electrical enclosure protection ratings — NEMA 250-2020 types (1 through 13 with variants) and IEC 60529 IP codes (IP20 through IP69K); includes protection descriptions, indoor/outdoor use, IP equivalents, corrosion resistance, hazardous location class/group, typical materials, and typical applications
| rating system | designation | corrosion resistance | dust protection level | enclosure id | hazardous location | indoor outdoor | ip equivalent | protection description | typical applications | typical materials | water protection level |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NEMA | 1 | no | falling dirt only | NEMA_1 | no | indoor | IP10 | Protects against accidental contact with live parts and falling dirt; no liquid protection | general purpose indoor panels switchgear junction boxes light industrial | steel painted | none |
| NEMA | 11 | yes (acid/alkali gases) | dust-tight | NEMA_11 | no | indoor | N/A | Protects against corrosive effects of liquids and gases; liquid and gas-tight; oil-immersed design; indoor use only | chemical environments with acidic or alkaline gases indoor corrosive atmospheres electroplating facilities | special corrosion-resistant materials; gas-tight seals; oil-immersed mechanisms | oil-immersed sealing |
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