The tripping characteristics of molded case circuit breakers

The tripping characteristics of circuit breakers are divided into several types, such as A, B, C, D, K, etc., each with the following meanings:
Type A tripping characteristics: The tripping current is (2-3) In, suitable for protecting semiconductor electronic circuits, measurement circuits with low-power power transformers, or systems with long circuits and low short-circuit currents< Type B tripping characteristics: The tripping current is (3-5) In, suitable for residential distribution systems, protection of household appliances, and personal safety protection< Type C tripping characteristics: The tripping current is (5-10) In, suitable for protecting distribution lines, lighting lines with high connection currents, and motor circuits< D-type tripping characteristics: The tripping current is (10-20) In, suitable for protecting equipment with high impulse current, such as transformers, solenoid valves, etc< K-type tripping characteristics: It has 1.2 times the thermal tripping action current and 8-14 times the magnetic tripping action range, suitable for protecting motor circuit equipment, and has high resistance to impact current