480 volt ballast wiring diagram thanks for visiting our site this is images about 480 volt ballast wiring diagram posted by benson fannie in 480 category on oct 21 2019 you can also find other images like images wiring diagram images parts diagram images replacement parts images electrical diagram images repair manuals images engine diagram images engine scheme images wiring. Wide array of ballasts for high intensity discharge hid lamps. A ground connection must be made to all ballasts to avoid shock hazard personal injury or damage to the luminaire or installation.