Description

UL 879A – Standard for LED Sign and Sign Retrofit Kits

Please note: All interim revisions for this edition available at time of your purchase will be included.

LED Sign and Sign Retrofit Kits

UL 879A

Scope
This standard covers LED (light emitting diode) kits intended for field installation to retrofit signs already installed in the field and LED kits intended for installation in new signs.

Retrofit kits
These LED kits are intended to replace the electrical components related to the type of illumination used in a sign, such as neon, fluorescent, and HID. Neon sign components include neon tubes, tube supports, neon power supplies, and all secondary wiring from the neon supply. Fluorescent sign components include fluorescent tubes, ballast, and ballast secondary wiring, and in some cases lampholders.

Retrofit kits include the power supply or transformer, power supply or transformer enclosure, the LEDs and the LED mounting means, and installation instructions.

New sign construction
Component power units may be incomplete with respect to electrical enclosure, mounting, supply connections, etc. LEDs, secondary wiring, and LED transformers or supplies may be provided separately.