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Fuse vs Breaker: How to choose the right device

Featured Product from E-T-A Circuit Breakers

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Is a fuse or circuit breaker best for your design? Here are some pointers to help you decide.

Three main factors go into choosing between circuit breakers and fuses: Convenience for the user, cost, and degree of protection. While some of these may seem obvious, they're not, and the answers vary depending on the application.

E-T-A's white paper Fuse vs. circuit breaker: How to choose the right device for your application to:

  • Understand the differences in replacing fuses vs. circuit breakers
  • Learn the difference between the current rating for a circuit breaker and the ampere rating of a fuse
  • Calculate the delay characteristic of a fuse or a circuit breaker

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