A fuse and a circuit breaker both serve the purpose of protecting electrical circuits from overcurrent situations, but they operate differently. A fuse is a simple, one-time-use device that contains a metal strip or wire that melts when exposed to excessive current. This interruption breaks the circuit and prevents further flow of electricity, protecting the wiring and devices. Fuses need to be replaced after they blow. In contrast, a circuit breaker is a reusable device that trips (opens) a circuit when it detects an overload or short circuit. It can be manually reset after tripping, making it more convenient than fuses in terms of maintenance.
On Quizlet, the difference between a fuse and a circuit breaker is typically explained in terms of their operation and resetability. A fuse is described as a disposable device that melts to interrupt the circuit during overcurrent situations, requiring replacement once blown. In contrast, a circuit breaker is highlighted as a reusable device that trips electronically or mechanically to break the circuit, offering the advantage of being reset without replacement.
Using a fuse instead of a circuit breaker is advantageous in certain applications due to cost-effectiveness and simplicity. Fuses are generally less expensive and easier to install compared to circuit breakers. They are suitable for protecting specific circuits and individual appliances where frequent resetting is not a concern. However, circuit breakers offer the advantage of resetability and convenience in situations where frequent overcurrent events might occur.
Fuses are explained as protective devices that melt and break the circuit during overcurrent conditions, requiring replacement after activation. Circuit breakers, on the other hand, are described as devices that trip electronically or mechanically to interrupt the flow of electricity, offering the benefit of being reset manually or automatically without needing replacement.
The difference between a fuse and an MCB (Miniature Circuit Breaker), often referred to as Class 10 MCB, lies in their operating characteristics and response to overcurrent situations. A fuse operates as a one-time-use protective device that melts when exposed to excessive current, requiring replacement after activation. In contrast, a Class 10 MCB is a type of circuit breaker designed to trip quickly in response to short circuits and severe overcurrents, offering the advantage of being resettable without needing replacement. This makes Class 10 MCBs suitable for applications where rapid protection and ease of maintenance are critical.