Which statement correctly defines the Continuous Current Rating?

• A. It is the maximum short circuit current the fuse can interrupt.
• B. It is the current the fuse is intended to normally carry.
• C. It is the voltage rating of the fuse.
• D. It is the speed of response.

Answer: (B)

The Continuous Current Rating is the current level the fuse is designed to carry continuously without tripping under specified conditions. It sets the normal operating current the circuit should have, so the fuse protects against overcurrent without nuisance trips when everything is working as intended. If current rises above this rating and stays high, the fuse will trip based on its time-current characteristics. This rating is distinct from the interrupting rating (the maximum short-circuit current the fuse can safely interrupt), the voltage rating (the maximum voltage across the fuse), and the response speed (how quickly it trips).