Circuit breakers are devices that stop the electrical current in a circuit in the event of excess or very high voltage. Circuit breakers are useful, not only because they can protect against electrical fires, but also because they can reset. When a fuse blows, it needs to be replaced every time, while the circuit breakers easily reset when tripped.

Every appliance in your home receives electrical currents through electrical circuit breakers. Circuit breakers are considered main or individual. The main circuit breaker controls power throughout the home, while individual circuit breakers transmit power to individual appliances.

Electric circuit breakers are probably the most important safety feature in a building. A circuit breaker measures the amount of heat produced by the current or by the magnetic field created by the small coil inside the switch. When the current increases too much, the switch will cut the circuit to stop it. The fuses serve the same function but can only be used once. Anyone who has blown a fuse can tell you that it is much easier to have circuit breakers.

Electric circuit breakers are also useful to cut off power to the entire house. If you need to perform any electrical maintenance, either for the entire structure or for individual electrical cables, turning off the main switch can be a safety tool. Although electrical waves are invisible, we all know they have great potential danger. You must label each individual electrical circuit breaker so that it is easily accessible for future use.

DC or DC circuit breakers are commonly used in automobiles. DC circuit breakers, unlike alternating current (AC) switches, only deliver currents in one direction. These types of circuit breakers are a source of renewable energy supply, and special precautions must be taken when using them.

Since all batteries have the ability to produce huge amounts of energy when short circuited, care must be taken to properly install the switch, fuse, and disconnects in a vehicle. Cars must have additional overcurrent protection for the battery and each of the branch circuits. Sometimes vehicle fires occur when the owner fails to take proper precautions.

DC breakers often have plastic beads inside the fuse. When the current becomes too heavy, these plastic beads can melt and fill the gap inside the fuse and prevent an arc from forming. If the current is very strong, this can cause electric fires. While DC breakers are effective in preventing damage from current overload, they are only effective to a limited extent. Any power source using DC technology must have a backup master fuse to protect the vehicle from total short circuits.

Author's Bio: 

DC breakers often have plastic beads inside the fuse. When the current becomes too heavy.