... Fre;50/60 SBW-DT Elevator use voltage stabilizer Application; SBW-DT series voltage stabilizer are improved kind SBW series voltage stabilizer, apply to ... as Post Office, Shopping Center, Elevator, Hospital,School, Printing, stockshare and so on accation, where need stable normal voltage to let ... , short phaseOutput accuracy1-5%( changeable) Frequency; 50hz-60hz SBW-DT elevator use voltage stabilizer