Today I’d like to provide more information about one of the factors used in determining if a mobile device is rugged; Ingress Protection Ratings or IP Ratings. The following chart can help you learn more about what each 2-digit IP rating means and also help determine what IP rating best suits your application needs.
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|First number (Protection against solid objects)||Definition||Second number (Protection against liquids)||Definition|
|0||No protection||0||No protection|
|1||Protected against solids objects over 50mm (e.g. accidental touch by hands||1||Protected against vertically falling drops of water|
|2||Protected against solids objects over 12mm (e.g. fingers)||2||Protected against direct sprays up to 15o from the vertical|
|3||Protected against solid objects over 2.5mm (e.g. tools and wires)||3||Protected against direct sprays up to 60o from the vertical|
|4||Protected against solids objects over 1mm (e.g. tools, wires and small wires||4||Protected against sprays from all directions – limited ingress permitted|
|5||Protected against dust – limited ingress (no harmful deposit)||5||Protected against low pressure jets of water from all directions – limited ingress permitted|
|6||Totally protected against dust||6||Protected against strong jets of water|
|7||Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes|
|8||Protected against long periods of immersion under pressure|