In North America, emergency transfer switches, including the new Branch Circuit Emergency Lighting Transfer Switch (BCELTS), have tough testing and short circuit current requirements for a reason.
Tag: UL
Secrets of Product Listing Part 2: Tools and tips for specifiers and users
In the US, Product Listing by a Nationally Recognized Testing Laboratory provides a wealth of information about the correct and safe use of a product. How do we find that information and make good use of it?
Secrets of Product Listing Part 1: How to be electrically-informed
In the US, Product Listing by a Nationally Recognized Testing Laboratory provides a wealth of information about the correct and safe use of a product. But what is Listing, and what does it tell us?
