What is IP67?
IP67 is a rating that defines waterproof and dust proof connectors and connectivity products. Specifically, IP67 products are protected against solid objects like dust and sand, and it has been tested to work for at least 30 minutes while under 15cm to 1m of water.
Ingress Protection (IP) numbers are listed after the IP. The first number defines the part’s protection against solid objects like dust and sand. This number can range from 0 (meaning no protection against dust and sand) and 6 (meaning 100% protection against dust and sand). The second number after IP defines the part’s protection against liquids. It ranges from 0 to 8.
Where do I get IP67 connectors?
We have found the best place to get IP67 connectors is from Newark Electronics.
Here is a chart showing IP ratings:
| First number (Protection against solid objects) | Definition | Second number (Protection against liquids) | Definition |
| 0 | No protection | 0 | No protection |
| 1 | Protected against solid objects over 50mm (e.g. accidental touch by hands) | 1 | Protected against vertically falling drops of water |
| 2 | Protected against solid 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 solid 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 if water from all directions – limited ingress permitted |
| 6 | Totally protected against dust | 6 | Protected against strong jets of water e.g. for use on ship decks – limited ingress permitted |
| 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 |
We have an industrial environment that gets somewhat wet during cleaning procedures. IP67 enclosures and cable assemblies are used and we have been happy with the results.