ESAB Linde Fuse Assembly is designed to protect water-cooled TIG welding torches against electrical overload and burnout due to water supply failure. It is shipped ready-to-use with a fuse link inserted, and four extra fuse links are supplied for welding with currents up to and including 250 amperes. For welding currents over 250 amps, a heavy-duty fuse link (accessory) should be installed. The fuse assembly comes with a 1/4-in. LD. vinyl hose that should be attached to the fuse assembly's water-drain nipple and lead to an open or free-running drain.