IK & IP Ratings – What does it all mean?

The IK rating (Impact protection) is the international standard for enclosures on electronic products to withstand mechanical impacts. Its an important factor when choosing a product that is going to be used in a harsher way or environment.

In laymans terms how tough is your product? What kind of robust use could it withstand? The higher the rating the tougher it is.

  • IK00 – No Protection
  • IK01 – Protected against 0.14 joules of impact (the equivalent to the impact of a 0.25kg mass dropped from 56mm above the impacted surface)
  • IK02 – Protected against 0.2 joules of impact (the equivalent to the impact of a 0.25kg mass dropped from 80mm above the impacted surface)
  • IK03 – Protected against 0.35 joules of impact (the equivalent to the impact of a 0.2kg mass dropped from 140mm above the impacted surface)
  • IK04 – Protected against 0.5 joules of impact (the equivalent to the impact of a 0.25kg mass dropped from 200mm above the impacted surface)
  • IK05 – Protected against 0.7 joules of impact (the equivalent to the impact of a 0.25kg mass dropped from 280mm above the impacted surface)
  • IK06 – Protected against 1 joules of impact (the equivalent to the impact of a 0.25kg mass dropped from 400mm above the impacted surface)
  • IK07 – Protected against 2 joules of impact (the equivalent to the impact of a 0.5kg mass dropped from 400mm above the impacted surface)
  • IK08 – Protected against 5 joules of impact (the equivalent to the impact of a 1.7kg mass dropped from 300mm above the impacted surface)
  • IK09 – Protected against 10 joules of impact (the equivalent to the impact of a 5kg mass dropped from 200mm above the impacted surface)
  • IK10 – Protected against 20 joules of impact (the equivalent to the impact of a 5kg mass dropped from 400mm above the impacted surface)

IP Ratings (Ingress protection) are an international numeric classification to indicate the degrees of protection provided by enclosures for electrical equipment against environmental conditions. It provides a means of specifying the capacity of an enclosure to protect its contents from external solids and liquids in accordance with IEC 60598-1:2003.

In laymans terms – how waterproof and dustproof is your device? Will a drip of water ruin it? or could you take it out into a dust storm? The high the numbers, the more protected the product.

IP ratings are made up of two numbers. The first number (1-6) signifies the ingress protection against solid items and particles. The second number (1-8) signifies the ingress protection against water. Both numbers are typically displayed together. eg:/ IP 54 etc..

Solids (1st number)

  • 1:- Protected against a solid object greater than 50mm – eg:/ a hand!
  • 2:- …. greater than 12.5mm – eg;/ a finger
  • 3:- …. greater than 2.5mm – eg:/ a screwdriver tip
  • 4:- …. greater than 1mm – eg:/ tip of a piece of wire
  • 5:- Limited ingress of dust particles as long as does not interfere with normal operation of device. Between 2 – 8hrs
  • 6:- Dust tight. No ingress of dust. Between 2 – 8 hrs

Water (2nd number)

  • 1:- Protected against vertically falling drops of water
  • 2:- Protected against vertically falling drops of water where enclosure is tilted up to 15degrees from vertical
  • 3:- Protected against sprays of water for up to 3mins, 60degrees from vertical
  • 4:- Protected against sprays of water from all directions
  • 5:- Water from heavy seas / projected jets shall not enter the enclosure is damaging quantities.
  • 6:- Protected from direct jets of water
  • 7:- Protected against immersion in water up to 15cm for 30mins.
  • 8:- Protected against immersion in water under pressure for long periods. (Waterproof)

Top Tip:- Watch for products designed for arid climates that can not handle conditions in other parts of the globe. eg:/A product rating of IP52 will only provide limited protection for a garden light in Northern Europe.”



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