Single Circuit Rated Current: 20 A Nominal input voltage: DC12-32V Rated input current: 75 A Maximum output current: 20A per circuit Product material: PA66 body, PC dust cover, nickel-plated copper terminals, stainless steel screws, PP 70 stickers Main terminal: M6 threaded stud (75A 32V DC max ) Main wire conductor: 4-6AWG Single wire terminal: M4 threaded stud (20A 32V DC max) Single wire conductor: 12-16AWG Fuse Type: Accepts ATO or ATC fuses from 1A to 20A.Product accessories: sticker*2, self-tapping screw*4.Installation range: it can be installed on cars, off-road vehicles , motorhomes, buses, yachts, boats, etc. Scope of use: It can be directly connected to the line of any electrical appliance on the car/boat (such as: ceiling light , car headlight, width light, fog light, warning light, car refrigerator, car charger, car fan, car television, etc.). Fuse function: when the circuit fails or is abnormal, the current continues to increase, and the increase in current may damage some important or valuable components of the circuit, and may also burn out the circuit or even cause a fire. Fuses protect electronic equipment against overcurrents and also protect electronic equipment against serious injury caused by internal faults. Therefore, there is a rating on each fuse, and when the current exceeds the rating, the fuse blows. If the fuse is placed in the circuit correctly, the fuse will cut off the current when the current rises abnormally at a certain height and temperature, thus protecting the safe operation of the circuit. One piece