Comparing NEMA and IP Enclosure Ratings

BY: CableOrganizer.com

 

This comparison is only approximate, and it is the responsibility of the user to verify the enclosure rating necessary for the given application.  

Enclosure IP23 IP30 IP32 IP55 IP64 IP65 IP66 IP67
1 X              
2   X            
3         X      
4             X  
4X             X  
6               X
12                
13       X   X    

 


IP Ratings (Ingress Protection)

Rating for Equipment and Enclosures

 

A three-digit number established by the International Electrotechnical Commission, is used to provide an IP Rating to a piece of electronic equipment or to an enclosure for electronic equipment. The IP code indicates the level, or amount of the protection.
The three digits represent three different forms of environmental influence:
The first digit represents protection against ingress of solid objects.
The second digit represents protection against ingress of liquids.
The third digit represents protection against mechanical impact damage.

(*The third digit is often omitted, resulting in a 2-digit IP Rating covering ingress against solid objects and liquids only).
The larger the value of each digit, the greater the protection from that influence. As an example, a product rated as IP573 would be better protected against environmental factors than another similar product that was only rated as IP432.

IP TABLE:

 

First Number
(Solids)
Second Number
(Liquids)
Third Number
(Mechanical Impact)
0No protectionNo protectionNo protection
1Protected against solid objects over 50mm e.g. hands, large toolsProtected against vertically falling drops of water or condensationProtected against 0.225 joule impact (150g @ 15cm)
2Protected against solid objects over 12mm e.g. hands, large toolsProtected against direct sprays of water up to 15° from verticalProtected against 0.375 joule impact (250g @ 15cm)
3Protected against solid objects over 2.5mm e.g. wire, small toolsProtected against direct sprays of water up to 60° from verticalProtected against 0.5 joule impact (250g @ 20cm)
4Protected against solid objects over 1.0mm e.g. wiresProtected against water sprayed from any direction. Limited ingress permittedN/A
5Limited protection against dust ingress (no harmful deposit)Protected against low pressure water jets from any direction. Limited ingress permittedProtected against 2.0 joule impact (500g @ 40cm)
6Totally protected against dust ingressProtected against high pressure water jets from any direction. Limited ingress permitted (Shipdeck)N/A
7N/AProtected against the effects of immersion between 15cm and 1M.Protected against 6.0 joule impact (1.5Kg @ 40cm)
8N/AProtected against long periods of immersion under pressure.N/A
9N/AN/AProtected against 20 joule impact (5Kg @ 40Protected against 0.225 joule impact (150g @ 15cm)

 

 

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