Industrial Enclosure Environment Reference
Filter common NEMA enclosure type descriptions by location and environmental exposure before checking the exact product listing.
Filter by location and exposure
This reference does not list hazardous-location enclosure types or identify Class/Division/Zone.
Enclosure type descriptions
16 type descriptions match every selected location and exposure.
| NEMA type | Location | Conditions listed |
|---|---|---|
| Type 1 | Indoor | Falling dirt |
| Type 2 | Indoor | Falling dirt, Dripping / light splashing water |
| Type 3 | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Circulating dust, Settling dust, Windblown dust |
| Type 3R | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet |
| Type 3S | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Ice-laden mechanisms remain operable, Circulating dust, Settling dust, Windblown dust, Corrosive agents |
| Type 3X | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Circulating dust, Settling dust, Windblown dust, Corrosive agents |
| Type 3RX | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Corrosive agents |
| Type 3SX | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Ice-laden mechanisms remain operable, Circulating dust, Settling dust, Windblown dust, Corrosive agents |
| Type 4 | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Circulating dust, Settling dust, Windblown dust, Hose-directed water |
| Type 4X | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Circulating dust, Settling dust, Windblown dust, Hose-directed water, Corrosive agents |
| Type 5 | Indoor | Falling dirt, Dripping / light splashing water, Settling dust, Corrosive agents |
| Type 6 | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Circulating dust, Settling dust, Windblown dust, Hose-directed water, Temporary submersion |
| Type 6P | Indoor / Outdoor | Falling dirt, Dripping / light splashing water, Rain / snow / sleet, Circulating dust, Settling dust, Windblown dust, Hose-directed water, Corrosive agents, Prolonged submersion |
| Type 12 | Indoor | Falling dirt, Dripping / light splashing water, Circulating dust, Settling dust, Windblown dust, Oil / coolant seepage |
| Type 12K | Indoor | Falling dirt, Dripping / light splashing water, Circulating dust, Settling dust, Windblown dust, Oil / coolant seepage |
| Type 13 | Indoor | Falling dirt, Dripping / light splashing water, Circulating dust, Settling dust, Oil / coolant seepage, Oil / coolant spray |
About this reference
Select indoor or outdoor use and the environmental exposures documented for the job. The table shows NEMA type descriptions that include every selected condition.
Use the results to narrow the type descriptions to review. This reference does not choose an enclosure or verify that a specific product is suitable.
How to read the results
The filters match only conditions included in each listed description. A missing result does not prove that no enclosure can meet the application; it means this quick reference found no description that includes all selected filters.
Product suitability also depends on enclosure materials, gasket and opening design, mounting orientation, cable entries, condensation, internal contamination, UV exposure, and chemical compatibility.
FAQs
Does the reference select a NEMA enclosure type?
No. It filters published environmental descriptions. Verify the exact enclosure marking, listing, materials, construction, and installation conditions with the manufacturer.
Does Type 4X mean the enclosure is compatible with every chemical?
No. Corrosion resistance does not identify which chemicals, concentrations, temperatures, or exposure durations a specific enclosure material can withstand. Check manufacturer compatibility data.
Can I use this for a hazardous (classified) location?
No. Hazardous-location equipment depends on the documented area classification and the specific equipment listing. This reference stops rather than returning ordinary-location types.
Can I substitute an IP rating for a NEMA type?
No direct substitution is provided here. Compare the exact requirements and product certifications; do not assume two labels are interchangeable.
Sources
- UL White Book, AAIZ Guide Information — environmental conditions associated with enclosure Types 1, 2, 3, 3R, 3S, 3X, 3RX, 3SX, 4, 4X, 5, 6, 6P, 12, 12K, and 13. This older guide is a navigation aid, not the current product certification record.
- ANSI/NEMA 250, Enclosures for Electrical Equipment (1000 Volts Maximum) — consult the edition applicable to the project and the certification record for the exact product.