NRT28 series cylindrical cap fuse applies to power distribution system with AC 45Hz-62Hz, rated voltage of 500V,and rated current of 125A, to protect overload and short circuit (it is not recommended but RT36 fuse in capacitor box). Neon light and resistance comprise the fuse base's fuselink fuse signal device (code “X”). 

NRT28 series holder can be used in combination with RT28-32, RT28-63, and RT29-125 “gG” fuse links, “gG” is the general-purpose fuse link with full-range breaking capacity. Standard: IEC 60269-2.