Technological Innovation

What is the IEC Protection Standard?


The IEC (International Electrotechnical Commission) Protection Standard, also known as the IP Code or Ingress Protection Code, is an internationally recognized system used to classify and rate the level of protection provided by electrical enclosures against various environmental conditions. The code consists of two digits, with each digit representing a specific type of protection.

Understanding the IP Code Format

The first digit in the IP code represents the degree of protection against solid objects such as dust and debris. It ranges from 0 to 6, with 0 indicating no protection, and 6 indicating complete protection against the entry of dust. This digit is crucial in determining the suitability of the electrical enclosure for different environments - from daily household use to industrial settings.

The second digit indicates the level of protection against liquids, such as water and moisture. Similar to the first digit, the second digit ranges from 0 to 8, with 0 meaning no protection and 8 meaning the highest level of protection against water immersion, even under specified conditions like submersion at a certain depth and duration.

Interpreting the IP Code Ratings

For example, an electrical enclosure rated with an IP54 code offers moderate protection against dust particles (5) and is adequately protected against splashes of water (4) from any direction. On the other hand, an enclosure with an IP68 rating provides excellent resistance to dust (6) and can be continuously immersed in water beyond one meter (8).

It's important to note that the IP code does not provide information regarding protection against impacts, corrosion, or other specific hazards. Therefore, it's crucial to consider additional protective measures when necessary, depending on the intended use and environmental factors.


The IEC Protection Standard is a valuable tool for designers, manufacturers, and consumers in assessing the suitability of electrical enclosures for different environments. The IP code provides a standardized system for evaluating protection against solid objects and liquids, allowing products to be designed and used in a way that minimizes risk and maximizes safety.

When selecting an electrical enclosure, it is essential to understand the IP code ratings and carefully assess the requirements of the specific application to ensure that the enclosure will provide adequate protection. By doing so, potential hazards can be minimized, and the longevity and performance of electrical equipment can be optimized.


Contact: Cindy

Phone: +86-13751010017


Add: 1F Junfeng Building, Gongle, Xixiang, Baoan District, Shenzhen, Guangdong, China

Scan the qr codeclose
the qr code
TAGS Test Probe BTest Probe 18Test Probe 11Go GaugesIEC 61032IEC 60335Test PinTest FingerIEC 60061-3Wedge Probe7006-29L-47006-27D-37006-11-87006-51-27006-51A-2 7006-50-17006-27C-17006-28A-1Test Probe7006-27B-1IEC 61010IEC 60529IEC 60068-2-75