Square Pipe Fuse with Knife Contacts Nh00 63A

Application:
Protection against overload and short-circuit in electric lines, also avaliable for protection of semiconductor parts and equipments aganist short-circuit and protection of motors.

Rated voltage up to 1140V; Rated current up to 1250A; Working frequency 50Hz AC; Rated breaking capacity up to 120KA. Compliant with GB13539 and IEC269.

Design feauters:
Variable cross-section fuse element made from pure copper or silver sealed in cartridge made from high-duty ceramic. Fuse tube filled with chemically treated high-purity quartz sand as arcextingishing medium. DOT-welding of fuse element ends to the terminals ednsures reliable electric connection and forms insert knife type contacts. Indicator or striker may be attached to the fuse link to show cutout of fuse or to give various signal and to cut the circuit automatically.