Medium time delay, glass tube 5 mm x 20 mm ferrule fuse designed to UL 248-14 for overcurrent protection of electronic circuits. Install into a Bussmann Series fuse holder, block or fuse clip. Also available with axial leads for thru-hole installation. Eaton's GMC medium time delay, glass tube 5mm x 20mm ferrule fuse designed to UL 248-14 for overcurrent protection of electronic circuits. Order in cartridge fuse format and install into a Bussmann Series fuse holder, block, or fuse clip, or purchase with available axial leads for thru-hole installation.