... size, light weight, reliable performance, high breaking capacity, tripping rapidly, rail mounting, casing and components using in high flame retardant and impact ... , 47 is design No, 63 means frame degree rated currentThe main technical parameters:1, poles : single-pole, two, three, four pole ... .2, rated current : 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A.3, rated voltage ...