A device designed to interrupt an electrical current when the current exceeds a predetermined threshold.
A device that trips like a switch and opens the circuit when overloaded.
Switching device designed to protect an electric circuit from excessive current. It has the same action as a fuse, and many houses now have a circuit breaker between the incoming mains supply and the domestic circuits. Circuit breakers usually work by means of solenoids. Those at electricity-generating stations have to be specially designed to prevent dangerous arcing (the release of luminous discharge) when the high-voltage supply is switched off. They may use an air blast or oil immersion to quench the arc.
A switch that opens and cuts off the flow of current when the current exceeds a certain level. Circuit breakers are placed at critical points in circuits to protect against damage that could result from excessive current flow, which is typically caused by component failure. Circuit breakers are often used in place of fuses because they need only to be reset rather than replaced. Compare surge protector.
cutout / kətɑːwt /
Množina reči cutout je cutouts.
1. A part that is cut out or is intended to be cut out. cut-out
2. Something that has been cut out of a piece of paper, cloth, or other material is a cutout.
ETYM For fusee, fusil a firelock.
1. Any device by which an explosive charge is ignited; SYN. fuze, fusee, fuzee, primer.
2. Can interrupt the flow of electrical current when it is overloaded; SYN. electrical fuse.
A circuit element that burns out or breaks when the current passing through it exceeds a certain level. A fuse protects a circuit from damage caused by excess current. It performs the same function as a circuit breaker, but it cannot be reset, so it must be replaced if it breaks. A fuse consists of a short length of wire of a specific composition and thickness; the thicker the wire, the more current it can pass before the wire melts and breaks the circuit.
In electricity, a wire or strip of metal designed to melt when excessive current passes through. It is a safety device to stop at that point in the circuit when surges of current would otherwise damage equipment and cause fires. In explosives, a fuse is a cord impregnated with chemicals so that it burns slowly at a predetermined rate. It is used to set off a main explosive charge, sufficient length of fuse being left to allow the person lighting it to get away to safety.
ETYM Latin: cf. French protecteur.
1. One who, or that which, defends or shields from injury, evil, oppression, etc.; a defender; a guardian; a patron.
2. One having the care of the kingdom during the king's minority; a regent.