Ingress Protection (IP) Testing

Performance Testing against Water and Dust Ingress

Ingress Protection (IP) testing to IEC standard 60529, NEMA 250 testing, and UL 50E testing. Both UL testing and IP testing are typically performed on enclosures to determine the level of protection they provide against water, dust, ice, etc.

Ingress Protection (IP) Testing

IP testing rates and classifies the degree of protection the product provides against the intrusion of solid objects (i.e., body parts like hands and fingers), dust, accidental contact, and water in the electrical enclosure or casing. The numbers (characteristic numerals) indicate conformity with the conditions outlined in the tables below. If there is no protection rating with regard to one of the criteria, the digit is replaced with the letter X.

IP measures how well a device is protected from both solid objects and liquids. For example, for IP57 and IP67, the first digit tells us how well the product is protected from solids. The second digit is about how resistant the product is to water.

IP Rating Chart

IPX9K testing to ISO 20653 – Road vehicles – Degrees of protection (IP code) – Protection of electrical equipment against foreign objects, water and access

Interested in UL testing services? Check out our UL Standards and UL Certification Process.