• Current: 50 A; Voltage: 12 V-48 V DC • Dimensions: 100 x 42 x 40 mm (length x width x height) • Operating temperature: -10 ℃ to 50 ℃ (-14F to 122F) • Wire gauge: 8-12 AWG (with inner core), 4-12 AWG (without inner core) • Material: High-tech waterproof alloy housing, good electrical conductivity, and resistance to temperature and pressure • Easy to use: replaces the in-line fuse holder, with manual reset via button • Function: Protects the amplifier from damage due to current or voltage overload and prevents battery explosions from short circuits • Applications: Ideal for solar systems, battery charging, inverters, car audio and video systems, boats, trucks, RVs, and DC and marine audio amplification systems