INGRESS PROTECTION RATINGS

In the construction industry generally, a significant volume of industrial electrical installations require a high level of ingress protection to be afforded from the equipment selected for the installation and the integrity of the installed apparatus.

Like other electrical equipment enclosures that are required to have a verified Ingress Protection rating, cable glands are also required to be tested to recognised standard test methods for Ingress Protection, as per the example table overleaf. The range of CMP cable glands have been 3rd party independently tested in order to validate their Ingress Protection ratings, or I.P. ratings, in accordance with the requirements of EN60529 (IEC 60529). Some of the CMP cable gland types have been tested to IP66, whilst other types have been tested to IP66, IP67 & IP68, to a depth of 10 metres*. Ingress Protection should not be confused with Deluge Protection (i.e. the DTS 01 : 91 Deluge Test) which lays down a set of specific standard tests that are different from those in the IEC 60529 standard. It should be noted that none of the I.P. rating values taken from EN 60529 or IEC 60529 are equivalent to the Deluge Test Specification DTS 01 : 91.

Further information on the subject of Deluge Protection can be reviewed by clicking here.

Ingress Protection Matrix

The two digits of the Ingress Protection rating are explained as follows:

First Digit Protection against Solid Foreign Objects
and Access to Hazardous Parts
Second Digit Protection against Liquids
Illustration Method Explanation Illustration Method
0 - Non-protected Non-protected 0 - Non-protected
1 Protected against solid foreign objects of 50mm diameter and greater Protected against access to hazardous parts with the back of a hand 1 Protected against drops of water falling vertically
2 Protected against solid foreign objects of 12.5mm diameter and greater Protected against access to hazardous parts with a finger 2 Protected against drops of water falling at up to 15º
from the vertical
3 Protected against solid foreign objects of 2.5mm diameter and greater Protected against access to hazardous parts with a tool 3 Protected against spraying water at up to 60º from the vertical
4 Protected against solid foreign objects of 1.0mm diameter and greater Protected against access to hazardous parts with a wire 4 Protected against splashing water from all directions
5 Dust-protected Protected against access to hazardous parts with a wire 5 Protected against jet of water from all directions
6 Dust-tight Protected against access to hazardous parts with a wire 6 Protected against jet of water of similar force to heavy seas
  7 Protected against the effects of immersion
8 Protected against prolonged effects of immersion under pressure to a specified depth

* Please refer to appropriate product pages for specific Ingress Protection ratings according to their design and construction.

In addition to the Ingress Protection tests carried out as standard on the CMP range of Cable Glands, selected products have additionally been tested to meet the requirements of NEMA 4X in accordance with North American standards. The following table is provided for comparison purposes between typical NEMA and IEC 60529 ratings.

ENVIRONMENTAL RATINGS
NEMA RATING IEC 60529 RATING SOLIDS WATER
1 IP23 Objects > 12.5 mm Spraying
2 IP30 Objects > 2.5 mm Spraying
3 IP64 Dust-Tight Splashing
3R IP32 Objects > 2.5 mm Drips at 15°
3S IP64 Dust-Tight Splashing
4 P65-66 Dust-Tight Jet to Power Jet
4X IP66 Dust-Tight Power Jets
6 IP67 Dust-Tight Temporary Immersion
6P IP68 Dust-Tight Prolonged Immersion
12 IP55 Dust-Protection Jets
13 IP65 Dust-Tight Jets
Note: NEMA Ratings can be converted to IEC IP ratings but IEC IP Ratings CANNOT be converted to NEMA Ratings.