ATT pattern micro blade fuses. Zinc alloy. Blade fuses are generally used up to 24V and serve as a protector for the vehicle wiring system and electrical components. Includes 20 x 5/10/15/20/25/30A. Compatible with most cars and commercial vehicles. ATT pattern micro blade fuses. Zinc alloy. Blade fuses are generally used up to 24V and serve as a protector for the vehicle wiring system and electrical components. Includes 20 x 5/10/15/20/25/30A. Compatible with most cars and commercial vehicles.