Moderate

Protection by fuses is generally not used beyond__________?

Correct answer: C. 100 A

  • A. 20 A
  • B. 50 A
  • C. 100 A
  • D. 200 A

Explanation

Fuse protection is commonly used for lower current ratings, while circuit breakers are preferred above about 100 A because they are more suitable for repeated operation and higher fault levels. Therefore, 100 A is the conventional limit intended here.

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