cmy cmt cmu cmc mini circuit breaker is mainly suitable for ovedoad and shortcircuit protection.it is especially used for illumination and distribution in industry and commercc,it is of pleasing outlook & highbreaking capacity etc.it is frame and pfrts adopts plastics of light weight,reliable performance,high in flammable resistance and shock resistance for long service life it is mainly used for overload and short circuit protection within the circuit of ac 50/60hz, rated voltage of single pole up to 240v,two,three or four pole up to 415v.it can alsobe used for an unfrequent switchover of the circuit and illumination under normal conditiqns.