EN 62262

The European standard EN 62262 — the equivalent of international standard IEC 62262 (2002) — relates to IK ratings. This is an international numeric classification for the degrees of protection provided by enclosures for electrical equipment against external mechanical impacts. It provides a means of specifying the capacity of an enclosure to protect its contents from external impacts. The IK Code was originally defined in European Standard BS EN 50102 (1995, amended 1998). Following its adoption as an international standard in 2002, the European standard was renumbered EN 62262.

Before the advent of the IK code, a third numeral had been occasionally added to the closely related IP Code on ingress protection, to indicate the level of impact protection — e.g. IP66(9). Nonstandard use of this system was one of the factors leading to the development of this standard, which uses a separate two numeral code to distinguish it from the old differing systems. The standard came into effect in October 1995 and conflicting national standards had to be withdrawn by April 1997.

IK ratings help to classify products by its resistance to impacts by Kinetic energy, while EN 62262 specifies the way enclosures should be mounted when tests are carried out, the atmospheric conditions that should prevail, the number of impacts (5) and their (even) distribution, and the size, style, material, dimensions etc. of the various types of hammer designed to produce the energy levels required.

IK code and impact energy (values changed in Amd 1:1998)
IK code IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10
Impact energy (joule) * 0.14 0.2 0.35 0.5 0.7 1 2 5 10 20
Impact test characteristics
IK code IK00 IK01 to IK05 IK06 IK07 IK08 IK09 IK10
Impact energy (joules) * <1 1 2 5 10 20
R mm (radius of striking element) * 10 10 25 25 50 50
Material * polyamide1 polyamide1 steel2 steel2 steel2 steel2
Mass kg * 0.2 0.5 0.5 1.7 5 5
Free fall height m * * * 0.40 0.30 0.20 0.40
Pendulum hammer * Yes Yes Yes Yes Yes Yes
Spring hammer * Yes Yes Yes No No No
Free fall hammer * No No Yes Yes Yes Yes

* not protected according to the standard

  1. HR 100 Rockwell hardness according to ISO 2039/2
  2. Fe 490-2 according to ISO 1052, Rockwell hardness HR 50 to HR 58 according to ISO 6508

External links

IP Code

The IP Code, International Protection Marking, IEC standard 60529, sometimes interpreted as Ingress Protection Marking, classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. It is published by the International Electrotechnical Commission (IEC). The equivalent European standard is EN 60529.

The standard aims to provide users more detailed information than vague marketing terms such as waterproof. For example, a cellular phone rated at IP68 is "dust resistant" and can be "immersed in 1.5 meters of freshwater for up to 30 minutes". Similarly, an electrical socket rated IP22 is protected against insertion of fingers and will not be damaged or become unsafe during a specified test in which it is exposed to vertically or nearly vertically dripping water. IP22 or IP2X are typical minimum requirements for the design of electrical accessories for indoor use.

The digits indicate conformity with the conditions summarized in the tables below. The digit 0 is used where no protection is provided. The digit is replaced with the letter X when insufficient data has been gathered to assign a protection level.

There are no hyphens in a genuine IP code. IPX-8 (for example) is thus an invalid IP code.This page contains a combination of IEC 60529 (also EN 60529) and other standards, such as ISO 20653. The original documents are available for purchase, and have important and specific requirements that cannot be fully reprinted due to copyright restrictions. This often includes drawings specifying the required test equipment, such as the shape of water nozzles used for water jet testing. Additional standards are often referenced that may contain important information. One must refer to the latest revision of the required standard when conducting tests for agency certification.


MIL-STD-810, Environmental Engineering Considerations and Laboratory Tests, is a United States Military Standard that emphasizes tailoring an equipment's environmental design and test limits to the conditions that it will experience throughout its service life, and establishing chamber test methods that replicate the effects of environments on the equipment rather than imitating the environments themselves. Although prepared specifically for military applications, the standard is often used for commercial products as well.

The standard's guidance and test methods are intended to:

define environmental stress sequences, durations, and levels of equipment life cycles;

be used to develop analysis and test criteria tailored to the equipment and its environmental life cycle;

valuate equipment's performance when exposed to a life cycle of environmental stresses

identify deficiencies, shortcomings, and defects in equipment design, materials, manufacturing processes, packaging techniques, and maintenance methods; and

demonstrate compliance with contractual requirements.The document revision as of 2019 is MIL-STD-810H . It supersedes MIL-STD-810G, Change Notice 1 which was issued in 2014.

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