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VFD Inverter and Standards in Different Countries

“The use of VFD inverters, also known as variable frequency drives, has become increasingly popular in various industries. These devices provide optimal performance and reliability for industrial automation and new energy applications.

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Standards for VFD Inverters in Different Countries

When it comes to VFD inverters, different countries have their own standards to ensure safety, compatibility, efficiency, and environmental protection. These standards help regulate the design, manufacturing process, installation requirements, electromagnetic compatibility (EMC), harmonic distortion levels generated by the inverters’ output waveforms.

China’s Standards on VFD Inverters

In China, the national standard GB/T 12668.1-2016 specifies technical requirements for general-purpose low-voltage adjustable speed electrical power drive systems (VFDs). It covers aspects such as product classification, performance requirements, test methods, and marking. Compliance with this standard ensures the safe and reliable operation of VFD inverters in China.

European Standards on VFD Inverters

In Europe, the International Electrotechnical Commission (IEC) has developed standards such as IEC 61800-7 series for adjustable speed electrical power drive systems. These standards cover various aspects including EMC requirements, functional safety, communication protocols, and environmental conditions. Compliance with these standards is essential for manufacturers to access the European market.

North American Standards on VFD Inverters

In North America, organizations like Underwriters Laboratories (UL) provide certification services for VFD inverters. UL 508C is a widely recognized standard that covers industrial control equipment including motor controllers and variable frequency drives. Compliance with UL standards ensures product safety and compatibility with North American electrical systems.


The use of VFD inverters continues to grow in various industries due to their ability to provide optimal performance and energy efficiency. Different countries have established their own standards to ensure the safe and reliable operation of these devices while considering factors such as compatibility, efficiency, electromagnetic compatibility (EMC), and harmonic distortion levels. Manufacturers must comply with these standards to meet regulatory requirements in different markets around the world.

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