C / 332, N / 333 Series Type Fuses

Bussman & Littlefuse C / 332 Fast Acting Series, N / 333 Series Time Delay. This is a discontinued fuse series used in the 1950's-1960's. Popular in Instruments and Electronic Equipment. Not to be confused with Littelfuse's current modern 332 series, ceramic 1/4"x1-1/4" fuses. These are a glass fuses with rejection ears. C / 332 are Fast Acting, N / 333 are Slow Blow Time Delay. The fuses were specifically designed to eliminate the possibility of over fusing circuits and only fit Littelfuse 346 series fuse holders Buss HN holders for N fuse and Buss HC holders for C fuse. Also a combination of three different fuse lengths and seven different widths of bayonet locking tabs on the fuse caps. The fuse post is made to accept only the size amperage range and type (regular or slo blo) in its range. For example: a 1 amp slo blo fuse is 1-1/4" long with .115 to .120 with tabs. The holder used with this will only accept a slo blo fuse (N Type) above 3/4 to 1-1/4 amps.