IP (Ingress Protection) Ratings Degrees Of Protection Explained by Connexion Developments Ltd For example most solenoid valves supplied by Connexion Developments Ltd will be IP65 rated. Split this down to IP first number 6 see below shows as Dust Tight being better than Dust Protected or ingress by any tool or fingure etc. Second number 5 shows protection against water jets from any direction being better than falling water drops. Note: This is based on the fact that the cable used is the correct diameter and fitted correctly with the gland of connector, the connector is fitted correctly with the flat gasket supplied. Degrees Of Protection Provided By Electrical Enclosures (IP rating) | 1st No | Definition | Test Type | 2nd No. | Definition | Test Type |  1
| Protected against objects Ø 50mm Protect from access with hand | 
| 1 | Protected against vertically falling water drops |  | 2 | Protected against objects Ø 12.5mm Protected against access with finger |  | 2 | Protected against vertically falling water drops up to 15° inclination. |  | 3 | Protected against objects Ø 2.5mm Protected against access with tool |  | 3 | Protected against vertically falling water drops up to 60° inclination. |  | 4 | Protected against objects Ø 1.0mm Protected against access with wire | 
| 4 | Protected against splashing water in any direction |  | 5 | Dust protected |  | 5 | Protected against water jets from any direction |  | 6 | Dust tight | 
| 6 | Protected against powerful water jets from any direction |  | | | | 7 | Protected against temporary immersion in water |  | | Copyright Connexion Developments Ltd 2003 | | 8 | Protected against the effect of submersion |  |
| 
