Technical Articles

What class is an IEC cable?

An IEC cable, also known as an International Electrotechnical Commission cable, refers to a specific standard for power cords used in electrical appliances. The IEC sets the standards for electronics and electrical technologies internationally, ensuring safety and compatibility.

Classifications of IEC cables

IEC cables are classified based on their intended purpose, voltage rating, and the specific requirements of the equipment they are intended for. Some common classifications include:

1. IEC 60227: This classification pertains to cables used for general electrical applications, such as powering household appliances, computers, and audio visual equipment. It includes cables with various insulation materials and conductor types.

2. IEC 60320: This classification applies to connectors and couplers used in various electrical appliances, such as computer monitors, printers, and servers. It ensures standardization and compatibility between different devices that use similar plugs and sockets.

3. IEC 60502: This classification deals with power cables used in electricity distribution networks, including underground power lines and overhead transmission lines. These cables have higher voltage ratings and are designed to handle larger currents.

Features of IEC cables

IEC cables offer several key features that make them widely adopted in the industry:

1. Safety: IEC cables adhere to stringent safety standards to minimize the risk of electrical hazards, such as short circuits, fires, and electric shocks. They undergo rigorous testing and certification processes to ensure compliance with these safety standards.

2. Standardization: IEC cables promote interoperability and compatibility between various electrical devices. With standardized connectors and ratings, users can easily connect and use different devices without compatibility issues or the need for special adapters.

3. Versatility: IEC cables cater to different voltage ratings and applications, making them suitable for a wide range of devices. From low-power household appliances to high-power industrial equipment, there are IEC cables available to meet specific requirements.


IEC cables are an important component of electrical systems, providing power connectivity while ensuring safety and compatibility. The various classifications accommodate different needs and purposes, enabling the efficient use of electrical devices in various settings. As technology advances, IEC continues to play a vital role in setting and maintaining standards for electrical and electronic technologies worldwide.


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