NON-EK cartridge fuse emergency kit contains (1) NON-20, (2) NON-30, (1) NON-40, (2) NON-60, and a fuse tester. NON fuses are used to protect motors and branch circuits where higher amperage or voltage ratings are required. Cartridge fuses are used extensively in industrial, agricultural, and commercial applications as well as residential fuse panels, air concitioning units, pumps, appliances, and other equipment.