Enclosure Type Lookup
From NEC 2017 (NFPA 70-2017) Table 110.28, enclosure selection [1]; the site’s calculators each cite the NEC edition their own data came from. A check mark means the type provides a degree of protection against the condition.
Outdoor Use — NEC Table 110.28
Indoor Use — NEC Table 110.28
Types 4, 4X, 6 and 6P appear in both halves of the table. The table gives no IP (IEC 60529) equivalents, and its note says IP ratings do not substitute for enclosure type ratings.
Descriptive Terms
| Term | Typically used with enclosure types |
|---|
From Informational Note No. 1 to Table 110.28 [1].