The PSR031FL0315 is a Littelfuse FuseLink, a midget-sized, time-delay, single element fuse. It has a voltage rating of 250V and an amperage rating of 315A. Its interrupting rating is 200kA. It features a ferrule end termination with a ferrule mount, fast-acting characteristics, and a sizing of 31x15mm. This fuse is approved to UL, CSA, and CE standards. It is designed for usage in a wide variety of residential, commercial/industrial, and lighting applications.