Why are circuit breakers preferred over fuses in modern electrical installations?

Circuit breakers are preferred over fuses in modern electrical installations primarily because they can be reset and reused. This feature significantly enhances their convenience and practicality. When a circuit breaker trips due to an overload or short circuit, it can be easily reset with a simple switch action, restoring power without the need for any replacement parts. This not only saves time but also reduces the cost and waste associated with replacing fuses each time a fault occurs.

In contrast, fuses are one-time-use protective devices that must be replaced once they blow. This can be inconvenient, especially in situations where an electrical fault may occur frequently. Additionally, using circuit breakers promotes safer and more efficient electrical systems, as they provide a more reliable means of protecting the circuit without the need for continual replacement of components.