Siemens sentron nh type lv hrc fuse link glgg non insulated grip size 000 siemens 3na3817 the siemens 3na3817 is a nh fuse link from the lv hrc series this 40a link is rated at 500v and is ideal for use in installation systems in non residential commercial and industrial buildings as well as in switchgear assemblies of power utilities the link is supplied in size 000 and can be used in lv hrc fuse bases lv hrc fuse switch disconnectors lv hrc fuse strips as well as lv hrc in line fu