... , phase sequence protection Stable quality, complete protection DBW AC automatic stabilizer Advantages : 1, small size, light weight, suitable ... voltage304v~456v176v~264voutput pre cision±(1~5)% can adjust±(1~5)% can adjustphase31insulated strength2000V, 1 minute does not have ... , but the long-term effects in this temperature, can lead to semiconductor zeroA change and permanently damaged, thus ...