In a fuse the conductor, or little piece of wire you see inside the fuse is designed to designate when it heats up above a certain level -- if the current climbs too high, it burns up the wire. Destroying the fuse opens the circuit before the excess current can damage the building wiring. Once a fuse blows it must be replaced with a new one of the same amp rating. The basic circuit breaker consists of a simple switch, connected to either a bimetallic strip or an electromagnet. The hot wire in the circuit connects to the two ends of the switch. When the switch is flipped to the on position, electricity can flow from the bottom terminal, through the electromagnet, up to the moving contact, across to the stationary contact and out to the upper terminal. The electricity magnetizes the electromagnet. Increasing current boosts the electromagnet's magnetic force, and decreasing current lowers the magnetism. When the current jumps to unsafe levels, the electromagnet is strong enough to pull down a metal lever connected to the switch linkage. The entire linkage shifts, tilting the moving contact away from the stationary contact to break the circuit. The electricity shuts off. Resetting the breaker allows current to flow again. Fuses and breakers are there to protect the wiring and not what is plugged into the circuit.
A circuit breaker or a fuse.
You have a dead short in that circuit.
the circuit breaker will trip or fuse will blow to open the circuit.
A circuit breaker does not have a wire fuse in it.
A fuse or breaker.
A circuit breaker/fuse is designed to protect the wiring from getting overloaded.
You can reset a circuit breaker but a fuse you must replace.
A thermostat.
An example of a circuit protection device is a fuse. Another example is a circuit breaker.
circuit breaker, or "resettable fuse", which is a reallya small circuit breaker in the housing of a fuse
A fuse or circuit breaker used in a circuit is usually inserted in series with the load.
An alternative to using a fuse is to use an electrical circuit breaker.