... ;Working frequency 50Hz AC;Conventional free air thermal current 200A.fuse base,fuse Supporters for D01-D03,DIIDIII fuses of all application kinds ... (gG,aM,aR)in electric lines(type gG)are capable of working under the heat caused by ... GB13539.1,Gb13539.3,GB13539.5 and IEC60269-1low voltage fuse base,cut out fuse bases,fuse base Screw type Fuse Base