20 AMP Auto Fuse £2.75 A duo-piece pack of 20 Amp-rated standard-size fuses. colour coded, 2 Blade construction DIN colour-coded yellow for easy identification, with a typical 2 conductive blade construction and internal central fuse wire. Standard Blade fuse dimension ATO/ATC fuses are the second largest blade fuse type available and also one of the most common for vehicle applications. universal Protection Suitable in a variety of applications as surge protection for a vehicle’s 12V and 24V electrical system.