The TH492000000 is a thermally protected, 88-amp in-line fuse holder from Bel Fuse, a manufacturer of electrical products for the automotive, consumer and telecom, and industrial markets. This product is suitable for use with Class G, H, J, or R low voltage slow-blow fuses with a diameter of 0.25 inches. It is constructed from glass-filled Nylon 6/6 to provide insulation and features a built-in over-temperature thermal protector. The holder has screw type terminals and a 1/4-inch quick connect with a plug. This product is UL, CSA and VDE certified.