because wires can get really hot and start a fire
circuit breaker
The purpose of a circuit breaker is to protect electrical circuits from short circuiting.
Protect the circuit with an OCPD, an over current protection device, such as a circuit breaker or fuse.
Circuit breaker or a fuse
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There are 2 different types of these devices: circuit breakers (which can be reset after the problem is fixed) and fuses (which must be replaced after the problem is fixed).
Branch circuits are protected by the circuit breaker found in the electrical panel. Each circuit should have its one breaker. The breaker should be rated to protect the insulation of the wire, so you can determine the breaker size based on the circuit conductor size Example #14-2 should be protected by a 15 amp breaker
MCB, Miniature Circuit Breaker is an automatically operated electrical switch designed to protect the electrical appliances and human beings from electrical shocks and faults.
A circuit breaker/fuse is designed to protect the wiring from getting overloaded.
MCB, Miniature Circuit Breaker is electric switch which is used to protect against short circuits
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
No, the dishwasher uses the dedicated breaker in the distribution panel, that feeds the device to protect the circuit, should a fault occur.