Fused Switch

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Logically then, the stupidity should be expanded to circuit breakers, because someone *could* replace say a single pole 15 or 20 with up to a 70. Better put a sign telling people not to do that 🙄
That was done for a short while in the seventies. The manufacturer used tamper resistant screws on bolt in breakers. Seen a CH panel in a fast food restaurant with them. They figured out pretty quick that it made it very hard to replace defective breakers. I wish I had taken a picture of it. Some on here don’t believe it. I remember my instructor talking about it in the 80’s
 
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