Series Eaton - HNB

As an installer, you have certainly come across the concept of protection classes. There are four protection classes for electrical and electrotechnical devices. Each determines the level of safety and protection against electric shock of a given device, allowing you to quickly identify its parameters. What are the protection classes of electrical devices? Detailed information on this subject is provided in the standard PN-EN 61140:2005/A1:2008 "Protection against electric shock. Common aspects of installations and devices". You will find the essence of knowledge in this article.