H.R.C.Fuse (RT18) 1:CCC,CE,ISO,IEC 2:Protection against ... ,2P,3P 4:OEM General1.1 NT low voltage H. R. C. Fuse has features of light in weight, small in size ... been widely used in overload and short circuit protection of electric installation.1.2 This product conforms to IEC 269 standards ...