Protection against overload and short circuit in electric lines(type gG), also available for protection of semiconductor parts and equipments against short-circuit (type aR) and protection of motors (type aM).Rated voltage up to 690V; Rated current up to 125A; Working frequency 50Hz AC; Rated breaking capacity up to 100kA, Compliant with GB 13539 and IEC 60269.Variable cross-section fuse element made from pure metal sealed in cartridge made from high-duty ceramic or epoxy glass. Fuse tube filled with chemically treated high-purity quartz sand as arc-extinguishing medium. Dot-welding of fuse element ends to the caps ensures reliable electric connection; Striker may be attached to the fuse link to provide immediate activation of micro-switch to give various signals or cut the circuit automatically.Special fuse as per Figure 1.2~1.4 can be supplied according to customers requirements.The models. dimensions, ratings are shown in Figures 1.1~1.4 and Table 1.