NOARK: Battle of the Breakers – MCCBs vs ACBs
Circuit breakers serve crucial functions. They rapidly stop faulty electric currents to prevent costly damage to equipment. Their designs differ depending on intended use and load capacities. Two common categories are Molded Case Circuit Breakers and Air Circuit Breakers. Though each disconnects power during problems, they have unique attributes. These make one preferred over the other for a given installation or application. Therefore, it’s useful for installers to know the features and differences in ACBs and MCCBs to select the right solution.

