1,ISO9001:2000 2,easy to use ,fast ... of 50Hz or 60Hz, rated insulation voltage 660V, rated current 0.1-93A for protecting the phase break ... contact. Fundamental parameter of the main circuitRated insulation voltage 660V;Rated working current 25,36,93A separately ... 60Hz;Use group, rated working voltage, appoint thermal current and rated current. intelligent high voltage motor phase advancer Electric motor ...