Fuse and circuit breaker replacement: when and why to act
A blown fuse or a circuit breaker that will not reset requires prompt intervention. These protective elements are essential for the safety of your electrical installation.
Signs requiring replacement
- Blackened or melted fuse
- Circuit breaker that refuses to reset
- Frequent tripping without apparent overload
- Circuit breaker that is hot to the touch
- Abnormal buzzing in the electrical panel
Common causes
- Circuit overload: too many appliances connected simultaneously
- Short circuit downstream of the fuse or circuit breaker
- Age: end-of-life components (ceramic fuses are obsolete)
- Undersized rating: protection undersized relative to the circuit
- Internal fault: worn tripping mechanism
Our intervention
- Diagnosis of the cause of the malfunction
- Verification of the entire protected circuit
- Replacement of the fuse or circuit breaker with a compliant model
- Upgrading if necessary (switching from fuse to circuit breaker)
- Functional test and NFC 15-100 compliance check
Fuse or circuit breaker: which to choose?
Modular circuit breakers have replaced the old fuses in modern installations. They offer several advantages:
- Simple resetting without cartridge replacement
- Better tripping precision
- Longer service life
- Compliance with the current NFC 15-100 standard
Prevention
- Never replace a fuse with a higher-rated model
- Have your panel modernised if you still have fuse holders
- Label each circuit on your electrical panel
- Test your RCDs every month
Call Elecprium on 06 95 62 24 33 for a fast replacement. Free quote and 2-year warranty on all our interventions.