JoeBergmann
New member
- Location
- St. Paul, Minnesota, USA
I am just learning about panel design and have gotten a copy of UL508A rev. 2. I have a question regarding item 66.11.2 which says that if an enclosure has buttons or selector switches it shall have an emergency stop button. Seems pretty cut and dried to me, but the place I am working doesn't include e-stops on such panels and they are currently being UL labelled by an outside source. Is there some exception to this part of the standard that I am missing? I am asking partly because I have never seen a panel like this WITHOUT and estop button. Note: the panel is marked as having incoming power supplied by customer, is there an exception there?
Any help/comments would be greatly appreciated.
Joe
Any help/comments would be greatly appreciated.
Joe