Edwards NEMA IP Ratings

DEMONSTRATING THE 102 SIGNALING Data brief description of the more types of enclosures used the electrical industry relating their environmental capabilities Please refer to the appro sections of the latest revision NEMA Standards Publication 250 for complete information applications features design tests Pertaining to Locations 1 Enclosures for use primarily to a degree of protection limited amounts of falling 3 Enclosures for outdoor use prima to provide a degree of protec against rain sleet windblown and damage from external ice 3R Enclosures for outdoor use prima to provide a degree of protec against rain sleet and from external ice forma 3S Enclosures for outdoor use prima to provide a degree of protec against rain sleet windblown and to provide for operation external mechanisms when ice 4 Enclosures for indoor or outdoor use to provide a degree of against windblown dust rain splashing water hose di water and damage from ex ice formation 4X Enclosures for indoor or outdoor use to provide a degree of against corrosion wind dust and rain splashing wa hose directed water and from ice formation 6 Enclosures for indoor or outdoor use to provide a degree of against hose directed the entry of water during temporary submersion a limited depth and damage external ice formation 6P Enclosures for indoor or outdoor use to provide a degree of against hose directed the entry of water during submersion at a limited and damage from external formation 12 Enclosures for indoor use primarily provide a degree of protection circulating dust falling and dripping non corrosive 12K Enclosures 12 with knockouts Pertaining to Classified 7 Enclosures for indoor use in loca classified as Class I Groups B C or D as defined in the Electrical Code 8 Enclosures for indoor or outdoor use locations classified as Class I A B C or D as defined in National Electrical Code 9 Enclosures for indoor use in loca classified as Class II Groups F or G as defined in the Na Electrical Code 10 Enclosures to mee the applicable of the Mine Safety Health Administration Data Protection IP as stated by Standard 529 describes the of protection an enclosure The first digit of the IP describes the degree of against access to hazard parts and ingress of solid ob the second digit designates Ingress Protection against wa Please refer to the appropriate of IEC 529 for complete regarding applica features and design tests on next page THE 102 SIGNALING Ratings Against Access to Parts First Digit Against Ingress of Second Digit Description Description against access with back of 50 mm against access with jointed 12 mm x 80 mm against access with a tool 2.5 mm against access with a wire 1.0 mm 5 6 Against Ingress of Foreign Objects First Digit Description equal or greater than 50mm equal or greater than 12.5mm equal or greater than 2.5mm equal or greater than 1mm protected tight dripping vertically dripping enclosure tilted up to 15 water up to 60 angle from water any direction water any direction jetting water any direction immersion in water immersion in water No 250 Appendix A NEMA To IEC Enclosure Designations following information is provided by NEMA Standard No 250 Appendix A a guide to comparing NEMA enclosure types to IEC designations Publication 529 Classification of Degrees of Pro Provided by Enclosures provides a system for specify the enclosures of electrical equipment on the basis of degree of protection provided by the enclosure IEC does not specify degrees of protection against mechani damage of equipment risk of explosions or conditions as moisture produced for example by condensation vapors fungus or vermin NEMA Standards Pub 250 does test for environmental conditions such corrosion rust icing oil and coolants For this reason because the tests and evaluations for other character are not identical the IEC Enclosure Classification Des cannot be exactly equated with NEMA Enclosure Numbers A 1 provides a guide for converting from Enclosure Type Numbers to IEC Enclosure Classifi Designations The NEMA Types meet or exceed the requirements for the associated IEC Classifications for reason Table A 1 cannot be used to convert from IEC to NEMA Types and the NEMA to IEC con should be verified by test A 1 of NEMA Type Numbers to IEC Classification Cannot be used to convert IEC Classification to NEMA TypeNumbers Enclosure Number Enclosure Designation and 4X and 6P and 12K This comparison is based on tests specified in IEC 529