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STANDARDS /CLASSIFICATIONS / ENCLOSER CLASSIFICATIONS
 
INGRESS PROTECTION (IP) CODES
 
FIRST NUMERAL
Protection against solid bodies
SECOND NUMERAL
Protection against liquid
No protection No protection
Objects >= 50mm Vertically dripping water
Objects >= 12.5mm 75 to 105deg angled dripping water
Objects >= 2.5mm Spraying water
Objects >=1.0mm
Splashing water
Dust-protected
Water jets
Dust-tight
Heavy seas, powerful jets
  Effects of immersion
  Indefinite immersion
 
IEC IP COMPARISON WITH NEMA
 
IEC ENCLOSURE
NEMA ENCLOSURE
NEMA AND UL TYPE NUMBERS
IP54
3
Type 3 enclosures are intended for outdoor use primarily to provide a degree of protection against windblown dust, rain, sleet and external ice formation.
IP54
3R
Type 3R enclosures are intended for outdoor use primarily to provide a degree of protection against falling rain and external ice formation.
IP54
3S
Type 3S enclosures are intended for outdoor use primarily to provide a degree of protection against rain, sleet, windblown dust, and to provide for operation of external mechanisms when ice forms.
IP56
4 and 4X
Type 4 enclosures are intended for indoor and outdoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, hose directed water and external ice formation.
Type 4X enclosures are intended for indoor and outdoor use primarily to provide a degree of protection against corrosion, windblown dust and rain, splashing water, hose directed water and external ice formation
IP52
5
 
No Equivalent
7
Type 7 enclosures are for use indoors in locations classified as Class I, Groups A,B,C or D, as defined in the National Electrical Code.
IP67
6 and 6P
 
No Equivalent
9
Type 9 enclosures are for use indoors in locations classified as Class II, Groups E,F or G as defined in the National Electrical Code.
IP52
12 and 12K
Type 12 enclosures are intended for indoor use primarily to provide a degree of protection against dust, falling dirt and dripping non-corrosive liquids.
 
 
 
 
   
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