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What is an IP Rated case?
What is an IP Rated case and why is it important to know what rating your protective case solution provides?
IP Rating (International Protection rating – *sometimes interpreted as Ingress Protection) is a rated that refers to the level of protection that a case offers when confronted with dust or water.
The two numbers in the IP code reflect separately the products ability to stop ingress from solid and liquid foreign bodies.
From time to time you may see “X” in the IP code, this indicates that the IP rated only refers to one of the standards.
The first digit in the IP Rating always refers to “Solid Foreign Bodies” and the second digit to “Liquid Foreign Bodies”.
IP Rated Case Chart:
Dust Ingress:
The first digit indicates the level of protection that a case provides against access to hazardous parts (e.g. electrical conductors, moving parts) and the ingress of solid foreign objects.
| Level | Object Size Protected Against | Effective Against |
| 0 | Not protected | No protection against contact and ingress of objects. |
| 1 | >50mm | Any large surface of the body, such as the back of the hand, but no protection against deliberate contact with a body part. |
| 2 | >12.5mm | Fingers or similar objects. |
| 3 | >2.5mm | Tools, thick wires, etc. |
| 4 | >1mm | Most wires, screws, etc. |
| 5 | Dust Protected | Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment; complete protection against contact. |
| 6 | Dust Tight | No ingress of dust; complete protection against contact. |
Water Ingress:
The second digit indicated the level of protection that the case against harmful ingress of water.
| Level | Size Protected Against | Effective Against |
| 0 | Not Protected | No protection against the ingress of water. |
| 1 | Dripping water | Dripping water (vertically falling drops) shall have no harmful effect. |
| 2 | Dripping water when tilted up to 15° | Vertically dripping water shall have no harmful effect when the enclosure is tilted up to 15° from its normal position. |
| 3 | Spraying Water | Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect. |
| 4 | Splashing Water | Water splashing against the enclosure from any direction shall have no harmful effect. |
| 5 | Water Jets | Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects. |
| 6 | Powerful water jets | Water projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects. |
| 7 | Immersion up to 1m | Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion). |
| 8 | Immersion beyond 1m | The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. Normally, this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects. |
IP67 Rated Cases
In most situations the rating that case manufacturers aim to achieve is IP67. This indicates that the case has been certified to protect against Water and Dust intrusion – insuring that your products are always protected.
Cases2Go offer a large range of IP Rated cases. Click here for more details.
*Explanation of the letters IP is given in IEC 60529 (Ed. 2.1), clause 4.1
