DZ47 has the feature of advanced frame, reliable performance, high interrupting capacity, beautiful figure and small volume. The case and three components is adopted the material of anti-impulse and high resistance to combustion. It applies to the location using AC50/60Hz, rated working voltage of above 400V,rated current of under 63V. It is mainly used in the office building, residence and the similar construction act as protection against over load, short circuit of illumination, power distribution lines and equipment. Under the normal condition, it also can be used as infrequent conversion of the lines.