Protected systems are classified in so-called IP codes as regards their suitability for different environmental conditions.The abbreviation IP stands for International Protection. In some cases the abbreviation also stands for Ingress Protection in English-speaking countries.
There are various German and international standards for the IP-codes.
All standards mentioned here are equally valid but differ regarding revision status and details. It is therefore necessary to indicate the referenced standard for an unequivocal determination of IP-codes.
|Test chamber size:||1600mm x 1600mm x 1400mm (WxHxD)|
|Bigger test samples on request|
DIN EN 60529; VDE 0470-1 Degrees of Protection provided by Enclosures (IP-Code)
DIN SPEC 79009 planned standard for E-Bikes and Pedelecs
ISO 20653 Road vehicles -- Degrees of protection (IP-Code) (replacing DIN 40050)
DIN EN 60068-2-17 Environmental testing - Part 2: Tests - Test Q: Sealing
DIN EN 60068-2-18 Environmental simulation: water
MIL-STD-810G Method 506.5 Rain
RTCA DO-160G Section 10 Waterproofness
Definition of the IP codesThe IP code always consists of the letters IP with two added digits. These digits define the protection against solid particles, protection against intrusion (body parts such as hands and fingers) and the protection against water. IP54 for example declares a protection against dust, protection against intrusion and protection against splash water from any direction. If a protection class is not applicable, it will be replaced by an X (e.g. IPX6). For an even better description of the protection class those digits can be accompanied by exactly defined letters. For example, ISO 20653 defines the letter K for the labeling of automotive equipment.
|ISO 20653||DIN EN 60529||Protection against solid particles||Protection against contact|
|0||0||No protection||No protection|
|1||1||Protection against solid particles ≥ 50mm||Protection against touching with the back of the hand|
|2||2||Protection against solid particles ≥ 12,5mm||Protection against touching with a finger|
|3||3||Protection against solid particles ≥ 2,5mm||Protection against access with a tool|
|4||4||Protection against solid particles ≥ 1mm||Protection against access with a wire|
|5K||5||Protection against dust in harmful quantities||Complete protection against touching|
|6K||6||Dust tight||Complete protection against touching|
|ISO 20653||DIN EN 60529||Liquid ingress protection|
|1||1||Protection against dripping water|
|2||2||Protection against dripping water when tilted at 15°|
|3||3||Protection against spraying water when tilted at 60°|
|4||4||Protectection against splashing water from any direction|
|4K||Protection against splashing water from any direction with increased pressure|
|5||5||Protection against water jets|
|6||6||Protection against powerful jets|
|6K||Protection against powerful water jets with ncreased pressure|
|7||7||Protection against temporary immersion up to 1m|
|8||8||Protection against immersion of 1m or more depth|
|9||Protection against powerful high temperature water jets specific for agricultural usage|
|9K||Protection against powerful high temperature water jets specific for automotive usage|
NEMAIn the USA enclosures are classified according to the NEMA 250 standard. The following table explains which IP code of IEC 60529 corresponds to which NEMA class. Both standards are not 100% equivalent, NEMA classification contains additional tests and features like functionality under icing, enclosures for hazardous areas, cable feedthroughs and other which are not addressed by IP codes.
|NEMA 250||DIN EN 60529|
|3, 3X, 3S, 3SX||IP55|
|12, 12K, 13||IP54|