• Professional unit designed to protect on-board computer system and modules from current overload during electrical service • Suitable for standard and mini fuse types • Select up to 9 levels of protection • Automatic current cut-off when selected value is exceeded • Built in warning buzzer • Capacity: 2A, 3A, 4A, 5A, 10A, 15A, 20A, 25A, 30A • Voltage range: 12v