JTM2 series mouleded case circuit breaker is one of the most advanced type breakers in the world,which adopt international advanced design and manufacture technology.It is suitable for short circuit and overland protection for circuit of AC 690v 50/60HZ,rated current from 12.5A to 630A.Its rated insulation voltage is 690V.It can make and break non-frequent circuit in the normal condition.It takes protect effect when mouse cage motors non-frequent start,breaking off working and protecting overload,short-circuit and lacking voltage.It is in conformity with standards of IEC60947-2 and EN60947-2.