15-125A MOULDED CASE CIRCUIT BREAKERS M7 moulded case circuit breaker is available in three ranges, standard, hi-break. The performance of the KM7MCCB range is the result of extensive design & development-utilizing AAD accredited test station. The current limiting action of KM7MCCBs provides low &#118alues of let-through energy. Full information for this and time/current characteristic curves are both available on request to provide more information.