ZJSHUYI MCCB is a plastic case type circuit breaker, referred to as: (MC...

MCCB is a plastic case type circuit breaker, referred to as: (MCCB), A circuit breaker: can be switched on, load and break the current under normal circuit conditions, can also be switched on under the specified abnormal circuit conditions, load a certain time and break the current of a mechanical switching appliance. Second, product selection and engineering design in civil architecture design of low voltage circuit breaker is mainly used for line overload, short circuit, over current, loss of pressure, under voltage, grounding, leakage, dual power automatic switch and not frequent starting of motor, operating purposes, the selection principles in addition to comply with the low voltage electrical equipment outside the use of environmental features and other basic principles of still should consider the following conditions: 1) The rated voltage of the circuit breaker shall not be less than the rated voltage of the line; 2) The rated current of the circuit breaker and the rated current of the overcurrent trip shall not be less than the calculated current of the line; 3) The rated short-circuit breaking capacity of the circuit breaker shall not be less than the maximum short-circuit current in the circuit; 4) The selective distribution circuit breaker needs to consider the short-delay short-circuit on-off capacity and the delay protection between stages; 5) The rated voltage of the circuit breaker undervoltage trip is equal to the rated voltage of the line; 6) When used for motor protection, the choice of circuit breaker should consider the starting current of the motor and make it not operate in the starting time; 7) Circuit breaker selection should also consider the circuit breaker and circuit breaker, circuit breaker and fuse selective coordination. Web: www.shuyitop.com; Tel/Fax: 0086-577-62840011 Wechat/WhatsApp: 008613355775769 #ZJSHUYI #Chinashuyi #shuyitop #breakers #MCB #MCCB