Ultrasave T5 Fluorescent Ballast - 120-277V AC | Programmed Start - ER254120MHT-W

The Ultrasave T5 Fluorescent Ballast, model ER254120MHT-W, is the component described here. The role of this model is to operate the corresponding fluorescent lamp arrangement within a compatible fixture. The listed lamp configuration is 2 X F54T5HO, which should be checked as a complete lamp-and-count combination. Its specified starting method is programmed start; compare it with the existing circuit rather than relying on the housing dimensions alone. When comparing replacements, note the 1 ballast factor as well as the lamp and supply ratings.

Plan the electrical connection around this model’s 120-277V AC rating. For the ballast compartment layout, allow for the listed length 17.50 in., width 1.72 in., height 1.18 in. and the installation clearances required by its instructions. Follow the wiring diagram for this model when making the replacement connections.