NEMA Ingress Protection Ratings
Two standards govern the ingress (entry) protection (IP) of equipment enclosures. These standards use rating systems to identify an enclosure’s ability to resist external environmental influences. The two standards are:
NEMA Ingress Protection Ratings
NEMA indicates an equipment enclosure’s degree of protection against various materials using the numbers 1–13. The numbers cover liquid, solid, and hazardous area requirements as indicated in the table below:
- International Electrotechnical Commission (IEC)
- National Electrical Manufacturer’s Association (NEMA)
NEMA Ingress Protection Ratings
NEMA indicates an equipment enclosure’s degree of protection against various materials using the numbers 1–13. The numbers cover liquid, solid, and hazardous area requirements as indicated in the table below:
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