What is fuse What is the function of fuse?
The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily. If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.
What is the role of an electric switch?
An electric switch is a device that interrupts the electron flow in a circuit. … The function of an electric switch is to regulate the current between the load and source of power. The power source is the electrons that push through the circuits.
Are fuses AC or DC?
Fuses must be rated for the voltage AC or DC in which they will be used. Generally, fuses have a DC voltage rating that is half of the maximum AC voltage rating.
What is a Class K fuse?
Class K fuses. These non-renewable fuses are available in 250VAC and 600VAC ratings, with current ratings from 0A to 600A. Class K fuses are available with DC ratings. The interrupting ratings may be 50kA, 100kA, or 200kA rms symmetrical. Class K-1 fuses provide the best degree of current limitation.