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How can a 30 Amps fuse for a shower of 9.5KW be replace with a 40 Amps fuse on RCD trip?
JagjivanBharadwa
If the current safety requirement is 30 amps, you can;t run if off of a larger circuit breaker. It violates NEC and is very unsafe.
If the current requirement is 40 amps , it will continuously trip a 30 amp breaker because it is too small of a breaker in electrical requirement.
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∙ 10y ago
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You could, but it would be safest not to. A time delay fuse will allow for a short (12 seconds or less) spike in the current (up to three times the rated current for the fuse). This happens when you start up a motor, or a compressor, etc... If you were to replace a regular fuse (say 2 amp) with a time delay fuse (also 2 amp), then instead of breaking the circuit at 2 amps, the circuit will go 12 seconds at 6 amps before shutting down. This could easily start a fire, so for your safety, it is best to replace a fuse with the exact same kind that came out of it.
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Can time delay house fuse replace an ordinary fuse?
You could, but it would be safest not to. A time delay fuse will allow for a short (12 seconds or less) spike in the current (up to three times the rated current for the fuse). This happens when you start up a motor, or a compressor, etc... If you were to replace a regular fuse (say 2 amp) with a time delay fuse (also 2 amp), then instead of breaking the circuit at 2 amps, the circuit will go 12 seconds at 6 amps before shutting down. This could easily start a fire, so for your safety, it is best to replace a fuse with the exact same kind that came out of it.
