Standards for control panels in USA are changing – is your control panel ready? Standards are regularly updated to reflect the state of the art. Accordingly, the new 3rd Edition of UL 508A was published in April 2018. To ensure that industrial control panels intended for use in the U.S. market meet the applicable requirements, electrical designers must take changes to the relevant standards into account. This white paper provides an overview of important changes and additions in UL 508A 3rd Edition.