IPX7

IPX7 is an ingress protection rating defined by the International Electrotechnical Commission (IEC) in IEC 60529. The “X” indicates that the rating does not specify protection against solids (dust). IPX7 specifically addresses protection against water ingress during immersion.

Under the standard, a device rated IPX7 has been tested by immersion in water up to a depth of 1 meter for up to 30 minutes, under controlled conditions. The test assesses whether water enters the device’s internal compartments in a way that could cause failure or damage. In practice, manufacturers may note additional usage limitations, such as avoiding operation while submerged or exposure to extreme temperatures, saltwater, or chemicals.

Limitations of the IPX7 rating include the fact that it applies only to the specified test conditions. It does not guarantee waterproof performance under longer submersion, greater depths, high-pressure jets, or challenging environments. Seals and gaskets can degrade over time, and damage from impacts, corrosion, or aging can compromise protection. Submersion in liquids other than fresh water may also affect performance unless specifically tested and rated.

IPX7 is part of a broader family of IP ratings used for water and dust protection. Ratings without a dust specification (the X) can be paired with other digits (for example, IP67 or IP68) to indicate combined protections. IP67 means dust-tight protection combined with immersion up to 1 meter for 30 minutes, while IP68 and higher or more specific manufacturer-defined conditions may apply for deeper or longer immersion. IPX7 is commonly found on consumer electronics where explicit dust protection is not claimed.