What are the differences between fuses and circuit breakers? What are the common points?

Firstly, in terms of their ultimate functions, fuses and circuit breakers can both achieve the effect of short-circuit protection, but the ways they achieve this are different. [The basic working principle of a fuse is that when current passes through a conductor, due to the presence of resistance, heat is generated as the current flows, and the greater the current intensity, the higher the heat generated. When the generated heat reaches the melting point of the fuse, the conductor melts and the circuit is interrupted, thereby achieving the function of short-circuit protection.] 

However, circuit breakers are different. [Circuit breakers utilize the magnetic effect of current in conjunction with electromagnetic trip devices to achieve short-circuit protection]. Once the current suddenly increases and exceeds the threshold, the valve will immediately open, thereby protecting the short-circuited circuit. When the fault is repaired, the closing valve can restore the circuit to normal operation. The melting of fuses is caused by the accumulation of heat over time and is irreversible. However, the magnetic effect of current used in circuit breakers can be restored simply by manual closing after the repair.