[Product advantages]: [1] The product is made of PA66 flame retardant, high temperature and low temperature environmental protection material, which fully meets [the fuse holder must have good mechanical strength, insulation, heat resistance and flame resistance, and should not be broken, deformed, burned and short circuit, etc.] conditions [2]All fasteners are made of stainless steel, the input and output ends of the fuse box are fixed with tightening screws, which can be installed more quickly, and the fuse box is fixed with self-tapping screws, which is easier and safer to install. [3] The product comes with a sticker, which can be attached to the electrical appliance we connect according to the name on the sticker. When the fuse is broken, we can immediately identify which electrical appliance has a problem, saving time and effort. [4] The product is delivered with double fuses. When applied, the fuse is burned out and can be replaced from the spare fuse immediately, and the fuse has sent multiple amps. The fuse for amps can be selected according to the current electrical appliance. [Product Model]ZH-979A2 [Input rated voltage]: 32V [Input rated current]: 75A [Maximum output current]: 20A per circuit [Material]: PA66 body, PC dust cover, nickel-plated copper terminals, stainless steel screws, PP70 stickers [Single wire terminal]: M4 threaded stud (20A 32V DC max) [Wire Specifications]: #12-16AWG Accepts ATO or ATC fuses from 1A to 20A [Installation range]: It can be installed on cars, off-road vehicles, RVs, buses, yachts, boats, etc. [Scope of use]: It can be directly connected to the line of any electrical appliance on the car/ship [such as: dome lights, car headlights, width lights, fog lights, warning lights, car refrigerators, car chargers, car fans, car TVs Wait] [Product accessories]: sticker X2; self-tapping screw X4; 20A safety piece X2; 10A safety piece X4; 5A safety piece X8; 3A safety piece X10; [Fuse function]: When the circuit fails or is abnormal, the current continues to increase, and the increased current may damage some important or valuable components in the circuit, and may also burn the circuit or even cause a fire. Fuses protect electronic equipment from overcurrent and also protect electronic equipment from serious injury caused by internal faults. Therefore, there is a rating on each fuse, and when the current exceeds the rating, the fuse will blow. If the fuse is correctly placed in the circuit, the fuse will cut off the current when the current abnormally rises to a certain height and temperature, thus protecting the safe operation of the circuit.