Product Features:
• When the current is not normal, the fuse will be blown, thus cutting off the entire circuit and protecting your microwave oven. 
• Because the fuse is a one-time replacement part, it must be replaced when the above situation occurs. 

Installation Precautions: 
• Before installing or repairing the microwave oven, you should disconnect the power in advance, do not pull out the fuse directly when there is electricity to view, make sure the microwave oven power off, wear rubber gloves, use pliers to remove the blown fuse, and then replace the fuse with a new one.