[Product Advantages]: [1] The product is made of PA66 flame-retardant material, offering high and low temperature resistance and environmental protection. It meets requirements for mechanical strength, insulation, heat resistance, and flame resistance, ensuring no breakage, deformation, burning, or short circuit under normal operating conditions. [2] All fasteners are constructed from stainless steel. The input and output terminals of the fuse box are secured with tightening screws for faster installation, while self-tapping screws are used to mount the fuse box, enabling easier and safer setup. [3] The product includes adhesive labels that can be affixed to connected electrical devices. In the event of a blown fuse, the labeled identification allows quick recognition of the affected device, saving time and effort during troubleshooting. [4] The kit includes spare fuses. When a fuse blows, immediate replacement is possible using the included backup fuses. Multiple amp ratings are provided, allowing selection based on the specific electrical load requirements. [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]: Suitable for installation in cars, off-road vehicles, RVs, buses, yachts, and boats [Scope of Use]: Can be directly connected to circuits of various vehicle or marine electrical appliances such as dome lights, headlights, sidelights, fog lights, warning lights, car refrigerators, chargers, fans, televisions, etc. [Product Accessories]: Sticker x2; Self-tapping screw x4; 20A fuse x2; 10A fuse x4; 5A fuse x8; 3A fuse x10 [Fuse Function]: In the event of a circuit malfunction or abnormal current increase, the fuse protects critical components by interrupting excessive current flow. Fuses prevent damage to electronic equipment and reduce the risk of fire caused by overcurrent or internal faults. Each fuse has a rated current value; when the current exceeds this rating, the fuse element melts, breaking the circuit. When properly installed, the fuse disconnects power when current reaches a dangerous level, ensuring safe operation of the electrical system.