DID YOU KNOW?
Fuses were commonly found in homes built prior to 1960. [2] While circuit breakers have largely replaced them, many homes and industrial facilities still rely on fuse-based systems for overcurrent protection.
KNOW THE RISK
- Fuses were common in home service panels installed before the widespread use of breakers. While effective, they must be handled and replaced correctly. [1]
- Fuses are designed to blow and shut down an electrical circuit when overloaded, preventing overheating and potential fire. [1]
- Overloaded circuits can overheat and cause house fires — especially if fuse sizes are mismatched.
MITIGATE THE RISK
1. Replace Fuses Properly
- Once a fuse is blown, it must be removed and the cause of overload identified before installing a new one. [1]
2. Match the Amperage Rating
- Always make sure replacement fuses match the amperage and voltage rating of the original. Never substitute a different type. [1]
3. Never Oversize a Fuse
- Using a fuse with a higher rating than specified defeats its safety purpose and can allow dangerous overheating. [1]
4. Look for Recurring Issues
- Frequent blown fuses could indicate a larger problem with the circuit or connected equipment. Consult a licensed electrician to investigate.
ELECTRICAL SAFETY REMINDER
Fuses are simple but powerful safety devices. Never take shortcuts when replacing one. Use the correct size, identify the cause of the overload, and stay alert to recurring problems that may signal a deeper issue.