Basic parameter of fuse holder are size ,current, voltage,number of poles,with LED indicator or without LED indicator .Size are 10*38,14*51,22*58.Generally current for fuse holder are 32A ,which refer to 10*38 fuse holder ;63A refers to 14*51 fuse holder ;125A refers to 22*58 fuse holder.Voltage can be devided into AC voltage and DC voltage.Generally AC voltage are 400V and 690V;DC voltage are DC 48V and DC 1000V.Number of poles can be 1 Pole,2 Pole, 3 Pole,1 pole+N pole;2 pole+ N pole; 3 pole +N pole.LED lamp will light up when the fuse blown out,which can help indicate the switch in trouble quickly.But you also can choose the one without LED indicator.

If you are interested in RT18 fuse holder,welcome to inquiry from GRL Electric via [email protected].