Re: [PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field

I see this as either a configuration change or retrofit. My experience is that as long as any changes (mods, substitutions, etc) you make are in a configuration already approved by UL, and your technical files are updated, then the impact should be minimal. Oh, and this should also be done by

Re: [PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field

Ronan, OSHA published a Safety and Health Information Bulletin on this topic. It is available here https://www.osha.gov/sites/default/files/publications/shib021610.pdf Get Outlook for iOS From: Ronan Shanley

Re: [PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field

Hi Ronan, Despite the UL508A Panel Program being a generic program, changing any NRTL labeled product in the field technically void's the mark. However, based on your description of the change, following comes to mind before being able to provide any consultation - 1. What is the

Re: [PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field

Hi Ronan, You are changing the product from await was listed so it would need a field evaluation. I would ask one of the labs that does field evaluation but seems pretty straight forward that since you are modifying the product from what was originally tested would need a field evaluation.

[PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field

Hi All, I have a question about maintaining the UL label on electrical enclosures when modified in the field. We have our electrical enclosures built at a UL 508A shop. We have a minor change to the design where we are removing a pushbutton from the front of the enclosure. We will update the