NEMA 250 Enclosure Ingress Protection Test

Electric Electronic Tests

NEMA 250 Enclosure Ingress Protection Test

The NEMA 250 standard addresses ingress protection of enclosures for electrical equipment rated at 1000 Volts or less. This equipment is intended for installation and use in certain non-hazardous and hazardous locations. NEMA 250 has defined 20 different enclosure types that offer varying degrees of protection.

NEMA 250 Enclosure Ingress Protection Test

Enclosures are grouped by hazardous and non-hazardous locations, as well as indoor, outdoor, and mining. The protection level includes protection against solids and water ingress. Below is a summary of each category and its specific scope:

Non-hazardous (unclassified) locations NEMA 250 Enclosures:

  • Indoors, Types 1, 2, 5, 12, 12K and 13.
  • Indoor or outdoor, Type 3, 3X, 3R, 3RX, 3S, 3SX, 4, 4X, 6 and 6P.

Hazardous (classified) locations NEMA 250 Enclosures:

  • Enclosures for indoors, Types 7 and 9.
  • Enclosures for indoor or outdoor use, Type 8.
  • Enclosures for mining applications, Type 10.

This international standard helps determine the ingress protection rating or rope rating. Testing NEMA enclosures includes testing the ingress of solid foreign objects. This includes items such as dust ingress, which is the smallest solid particles. The test determines whether solid particles cause a detrimental effect when they enter in sufficient quantity.

Liquid testing involves exposure to vertically dripping water and continuous immersion in water. The IP Code is based on the protection of both solids and liquids.

EUROLAB Laboratory performs NEMA 250 tests, what sets NEMA testing apart is our experience in helping manufacturers identify entry points. We partner with our customers to help identify potential solutions. We also have significant expertise in interpreting the NEMA 250 standard.

If the unit requiring testing is too large to be moved, it's fine. We have experience completing ingress protection tests at client's premises.

Why EUROLAB Lab is the right NEMA 250 ingress protection lab to complete your entry test.

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