Square pipe aR type fuse links with knife contracts

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 arc-extinguishing medium. Dot-welding of fuse element ends to the terminals ensures reliable electric connection and forms insert knife type contacts. Indicator or stiker may be attached to the fuse link to show cutout of fuse or to give various signals and to cust the circuit automatically.This kind of fuse is widely usd all over around the world.