What is the difference between ip and nema

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Limited ingress permitted Protected against 2. This brief article explains the differences and explores the importance of selecting the right rating, NEMA or IP, for your application.

And why they are important based upon installation locations and conditions. The standard rack-mount server cabinet with fully perforated doors is fine for placement in environmentally stable and clean spaces, like those that should be found in the data center.

Once out of that space and the further away from it you go, you will need to protect IT equipment with poorer installation conditions. Think - dust, dirt, moisture, blowing debris, even rodents. An enclosure rated for either NEMA12 or NEMA4 provides protection against hazardous parts access; ingress of solid foreign objects dirt, dust, fibers, lint, etc. Other levels 3R, 4X, etc.

NEMA ratings are most often used for installation in industrial applications and environments and are primarily used in North America. NEMA is geared towards industrial applications and is primarily used in North America, whereas IP ratings cover a broad set of applications worldwide. IP ratings cover protection only against the ingress of water and solid objects while NEMA includes supplementary protection standards against corrosion resistance and atmospheric gasses such as acetylene or gasoline.

NEMA ratings also include distinctions between hazardous and non-hazardous environments. For example, NEMA requires functionality under icing conditions and testing for environmental hazards such as corrosion and oil, whereas IP standards do not.

Although the ratings are not directly equivalent, they can be compared as shown in the table below. Setra Systems, Inc. All Rights Reserved.