... (Hz):50/60 2.single-phase voltage regulator 3.light weight, high efficiency TSD AC automatic voltage regulator1.Frequency(Hz):50/602.single ... -phase voltage regulator3.light weight, high efficiencyGeneralTSD series intelligent A C voltage stabilizer, which ... -10VA48 x 32 x 1952 x 38 x 25281 TSD AC automatic voltage regulator