The Ditek DTK-DL480 is a single phase surge arrester with a service voltage of 480VAC. Ditek's DL Series of Light Pole surge arresters have been engineered to meet stringent D.O.T. standards to protect outdoor lights. These series connected surge arresters provide optimum protection for high mast lights, highway lighting, standard street lights, and parking lot light poles. Waterproof construction allows use in outdoor environments, and an oversized #6 AWG ground wire provide optimum surge current dissipations. Backed by a ten year warranty, Ditek DL arresters are your choice for effective, economical outdoor lighting protection.