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Circuit breakers are Airpax, 500 amps,, $175, at KTA services. But I must admit I don't see the need, as the fuse is called a "semiconductor" fuse. Let me tell you, that doesn't mean that we are passing 775 amps thru a semi conductor! That's SEMI! It means it was designed to protect semiconductor equipment, which can be damaged by a spike. So the fuse will blow quickly. The circuit breaker has a trip time, depending % overload. So does the fuse.
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