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What is IEC 60529?

IEC 60529, also known as International Electrotechnical Commission standard 60529, is a widely recognized standard that defines the degrees of protection provided by enclosures for electrical equipment. These enclosures are designed to protect the equipment and its components from various external factors such as dust, water, moisture, and mechanical impacts.

This standard was first published in 1989 and has been regularly updated to meet the changing needs of the industry. The current version is IEC 60529:2013.

Understanding the IP Code

The IP code, or Ingress Protection code, is a classification system defined by IEC 60529. It is used to specify the level of protection provided by an enclosure against the intrusion of solid objects, liquids, and other foreign bodies.

The IP code consists of two digits. The first digit indicates the level of protection against solid objects, while the second digit indicates the level of protection against liquids. The higher the number, the greater the level of protection.

Degrees of Protection

IEC 60529 defines various degrees of protection based on the IP code. Let's take a closer look at some common degrees of protection:

IP20: Limited Protection

An enclosure with an IP20 rating provides limited protection against solid objects larger than 12.5mm in diameter and does not provide any protection against liquids. This level of protection is typically found in indoor environments where there is no risk of exposure to moisture or other hazardous substances.

IP54: Dustproof and Splash-proof

An enclosure with an IP54 rating offers complete protection against dust ingress and provides limited protection against water splashes from any direction. This level of protection is commonly found in outdoor electrical equipment, such as outdoor lighting fixtures or control panels.

IP68: Dusttight and Waterproof

An enclosure with an IP68 rating provides complete protection against dust ingress and can withstand continuous submersion in water beyond 1 meter depth for a certain period of time. These enclosures are used in applications where the equipment needs to operate underwater or in extreme environmental conditions.


IEC 60529 is a crucial standard that ensures the safety and reliability of electrical equipment in various environments. The IP code defined by this standard allows manufacturers and users to understand the level of protection an enclosure provides against solid objects and liquids. By following this standard, electrical equipment can operate efficiently and be protected from potential damage caused by external factors.


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