IP and IK Classifications

Ingress protection class of enclosures is given in form of IP classification, a two digit coding which is shown below. Fibox has tested the enclosures according to IEC 529 or EN 60529. The latter requires the second digit to be tested from class 6 upwards separately to each level of class, thus the double marking IP 66 / IP 67 indicates that the actual tests have been made for both levels.

The European standard for enclosures, EN 50298 also includes IK impact test. This test is described in EN 50102. The data for impact resistant is available for each individual Fibox enclosures.

If you need further help or have questions contact Fibox.

FIRST NUMBER  Protection against solid objects  SECOND NUMBER  Protection against liquids  IK CODE  Protection against   mechanical impacts
  0     ip_0  no protection   0  ip_0  no protection   00 ip_0  no protection

protected against  solid objects over 50 mm e.g. accidental touch by hands


protected against vertically falling drops of water


 impact   < 1 joule


protected against solid objects over 12 mm e.g. fingers

2ip_2_2 protected against direct sprays of water up to 15 ° from the vertical 06ik_06  impact   1 joule
3ip_3_1 protected against  solid objects over 2,5 mm (tools +small wires) 3ip_3_2 protected against sprays to 60° from the vertical 07ik_07  impact   2 joule
4ip_4_1 protected against solid objects over 1 mm (tools + small wires) 4ip_4_2 protected against water sprayed from all directions – limited ingress permitted 08ik_08  impact   5  joule
5ip_5_1 protected against dust – limited ingress permitted (no harmfull deposit.) 5ip_5_2 protected against low pressure jets of water from all directions –  limited ingress permitted 09ik_09  impact   10 joule
6ip_6_1 totally protected against dust 6ip_6_2 protected against strong jets of water e g for use on shipdecks – limited ingress permitted 10ik_10  impact  20  joule
7ip_7 protected against the affects of immersion between 15 cm and 1 m
8ip_8 protected against long periods of immersion under pressure

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