Fuse holders are electronic devices that are used for containing, mounting, and protecting fuses. Fuse holders basically come in two types: open and fully enclosed. Open fuse holders are fuse blocks, clips, plug-in caps, and socket varieties. Fully enclosed fuse holders use a fuse carrier, which is inserted into the holder or some other part to fully enclose the fuse.

GRL RT18 Fuse Holder can be applied in both AC and DC area.It is suitable for AC 50HZ/60HZ, rated insulation voltage up to 800V, and rated thermal current up to 125A. It can carry fuse with maximum size 22× 58 in various use categories (gG, aM, aR, etc.).  GRL RT18 fuse holder can withstand the conventional thermal current and the expected short-circuit impulse current to 100kA. GRL RT18 fuse holder comply with the national standard GB/T13539.2 and the International Electrotechnical Commission standard IEC60269-2.