Manufacturing of electric and changing message signs

General Coverage Electric Sign Program

UL's Electric Sign General Coverage Program allows manufacturers who custom build or mass produce electric signs to apply the UL Listing Mark at their factories. This program makes it convenient to receive UL Listing and allows for flexibility in the design of the signs. The UL Standard used to evaluate electric signs is UL 48, the Standard for Safety of Electric Signs. To learn more about the requirements of this Standard, please read the scope of UL 48.

Changing Message Sign Program

The Changing Message Sign Program has been adjusted significantly to be more sign manufacturer friendly. Where the description report was relatively precise, the description has been reduced to provide for variable size, pixel density and multiple power supply use. The Standard UL 48 is used for the overall requirements, and UL 879, the Standard for Safety of Sign Components is used for the electronic components portion. As changing message signs can be relatively large, the evaluation is conducted onsite at the convenience of the manufacturer.

Advantages of producing UL Listed signs:

• Create a competitive advantage.
  As a UL Listed sign producer, manufacturers can offer signs that meet the requirement for UL, the Standard for Safety of Electric Signs. You may also bid on jobs that seek UL Listed signs only.
• Cover all requirements.
  Using UL Listed or Recognized components in a sign does not guarantee or imply that the entire assembly meets all applicable safety requirements. UL's General Coverage Sign Program and Changing Message Sign Program cover proper component usage, enclosure environmental ratings, conformance to the National Electric Code (NEC), and wiring protection and safety markings.
• Avoid red-tagged signs at the installation site.
  Avoid the delays and extra costs associated with having an installation red tagged.
• Obtain the UL Mark.
  The UL Mark has long stood as the benchmark for safety in industry. Regulatory authorities in every jurisdiction in the United States and Canada recognize and accept the UL Mark.