Product size: 8.7x9.2x4.2cm Input rated voltage: 32V Input rated current: Mainline 50A, Mainline 50A Maximum output current: 20A per line Material: PA66 base, PC dust cover, nickel plated copper terminal, stainless steel screw, butadiene rubber waterproof washer, PP70 sticker, silicone sealed Mainline terminal: 1015/12 (50A 32V DC max) Single wire terminal: Copper/nickel plated 1/4" (6.3mm) (20A 32V DC max) Single wire diameter: 12-16AWG Aperture: 5.5 * 6cm Installation range: Suitable for cars, off-road vehicles, RVs, buses, yachts, ships, and other vehicles Indication function: Red LED lights up when the fuse is blown, indicating that the fuse needs replacement for continued operation Usage range: In the event of a circuit malfunction or abnormality, current may increase abnormally, potentially damaging critical components or causing fire hazards. Fuses protect electronic devices from excessive current and prevent damage due to internal faults. Each fuse has a rated capacity; when current exceeds this value, the fuse interrupts the circuit. When properly installed, the fuse will automatically cut off current if temperature or current reaches a dangerous level, ensuring circuit safety and minimizing equipment damage