Time delay, glass tube 1/4" x 1-1/4" ferrule fuse designed to UL 248-14 for overcurrent protection of electronic circuits where inrushes may be present. Install into a Bussmann Series fuse holder, block, or fuse clip or purchase with available axial leads for thru-hole installation. Eaton’s MDL time delay, glass tube 1/4" x 1-1/4" ferrule fuses are designed to UL 248-14 for overcurrent protection of electronic circuits where inrushes may be present. 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.