Home circuit breakers have limited functional options; current is a key focus in the selection process.

Step 2

For the DZ47-60 miniature circuit breaker, the key parameters and technical specifications include: the "C" in the model refers to lighting protection, while the "D" indicates motor protection.

Step 3

DZ47-XX is the product model, and the C XX following indicates the rated current of this circuit breaker is XX A.

Step 4

For instance, DZ47-32 and C32 refer to circuit breakers that trip over 32A.

Step 5

The rated current of circuit breakers must neither be too low nor too high. Too low, and it will cause frequent false tripping; too high, and it will fail to trip during overload, thus losing its protective function.

Step 6

Polarities include Single Pole 1P, Double Pole 2P, Triple Pole 3P, and Quadruple Pole 4P.

Step 7

Most miniature circuit breakers lack short-circuit short-time delay protection, which easily leads to over-level tripping faults, thereby causing power outages.