circuit breaker is a common product in daily life, which plays the role of on-off, control or protection in the circuit system. there are many types of circuit breakers, including < a href = "http://www.hangkaiele.com/" target = "_blank" title = "molded case circuit breaker" > molded case circuit breaker < / a > and leakage circuit breaker. let's explain the difference between them the plastic case circuit breaker (mccb) is generally used in the dc circuit system to distribute power or prevent the motor from overload, overvoltage, undervoltage or short circuit. the mccb's short-circuit breaking capacity can reach 100ka, which is generally used as infrequently connected and disconnected lines. the leakage circuit breaker is mostly used in ac circuit when for example, when the platform current of two three-phase power lines exceeds the specified value, they will trip, which can prevent electric shock accidents. the above is about the difference between molded case circuit breaker and leakage circuit breaker. our company specializes in the production of various types of circuit breakers, regular manufacturers, quality assured, and online contact if necessary