Wiring and componentsQuestion 393 of 1506

Which protective device melts if the equipment it protects goes above a set temperature?

  1. Fusible link
  2. Cycling breaker
  3. Thermal limiter
  4. Manual reset breaker
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Correct answer: Thermal limiter

A thermal limiter must be replaced after it melts, like a fuse.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 5.4: Circuit Protection Devices

Practice wiring and components

Questions last reviewed: 18 October 2026