... current of frame size Inm100,160,250,400,630Rated current In10016,20,25,32,40, ... ,250400200,225,250,300,315,400630315,350,400,500,600,630 Rated insulation voltage Ui660V ... 0Over current trip unitThermal magnetic release100,160,250,400,630Intelligent trip unit400,630 LM1(ABB) series ... -closed and disconnected frequently functions, and making the protection as line and equipment overload, or under voltage ...