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NEMA and CSA Enclosure Types
In its “Basics of Explosion Protection” whitepaper, R. Stahl covers many of the environmental issues that must be considered by users evaluating protection for workstations, enclosures, and industrial PCs. These types originate from the National Electrical Manufacturers Association (NEMA) and the Canadian Standards Association.
Ingress Protection Codes
The International Electrotechnical Commission (IEC) uses the term “ingress protection” (IP) to identify the environmental protection of a device. This is defined in IEC’s 60529 standard. This chart in Stahl’s whitepaper shows how the two-digit IP classification codes are used. Basically, the IP system designates the degree of protection provided by a device against ingress of dust and water.
First IP Digit is the degree of protection against solid objects
Second IP Digit is the degree of protection against water
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