... Delay time choice over-under voltage protection voltage stabilizerGeneralTSD series intelligent A C voltage stabilizer, which is developed by ... lag, over-voltage, under-voltage, overload and excess temperature and so on, uses hanging type installation for ... Frequency50Hz/60HzAdjusting timeLess than 1s (when input voltage has a change of 10%)Ambient temperature-5 ... x 38 x 25281 voltage stabilizer