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As said in a reply I made to one of those earlier questions that you linked some microwaves have the switches arranged so that they will short across the mains input voltage through the fuse if they do not sequence properly. This scheme allows a lot of current to flow through the switch contacts for those that perform the shorting function till the fuse ...


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Most microwave ovens have a physical interlock preventing opening the door while cooking (i.e. while the magnetron is running). This is to prevent injury to people, since being irradiated with ~1,000 watts of microwave energy is not good for your health. With the door closed, the oven should radiate no more than 5 mW, but with it open you'd get about 200,...


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