Series MM8 molded case circuit breakers is suitable for using the
circuit of AC 50Hz/60Hz, rated insulation voltage 690V, rated operating
voltage up to 660V, 690V, rated operating voltage up to 250V DC, rated
operating current 3A~800A, for disturbing energy of electricity and
infrequent making and breaking circuit, and infrequent starting of
motor at normal condition, with the function of the protection against
overload, short-circuit, under voltage and earth leakage.