UL 891 covers switchboards, which are electrical devices that distribute electrical energy from one or more main sources to different load circuits.
In this guide, we explain what importers and manufacturers must know about UL 891, including its scope, where you can purchase UL 891, and information about laboratory testing.
Notice that this guide is written only based on publicly available information on this page. You need to buy the standard in order to access the contents of UL 891.
Continue reading UL 891 Switchboards Standard: An Overview