Application scope¡ý The product is applicable to circuit with rated voltage up 400V AC, rated frequency 50/60Hz and rated current up to 63A for protection and control of circuit against overload and short circuit in commercial, household and electric equipment installation. The product is suitable for non-frequently making and breaking operation. The product, free of maintenance, can be operated by non-professionals. Standard¡ý GB10963 IEC60898 Main technical parameters Type ¡¡JVM16-63 MCB ¡¡Number of poles ¡¡1P¡¢1P+N¡¢2P¡¢3P¡¢3P+N¡¢4P ¡¡Rated Current(In) ¡¡1¡¢2¡¢3¡¢4¡¢6¡¢10¡¢16¡¢20¡¢25¡¢32¡¢40¡¢50¡¢63A ¡¡Rated Voltage(Un) ¡¡AC 230(240)/400(415)V ¡¡Rated frequency ¡¡50(60)Hz ¡¡Curve ¡¡B¡¢C¡¢D Short-circuit breaking capacity(Icn) ¡¡10000A (10kA) ¡¡Magnetic releases operate ¡¡B curve: between 3 and 5 In ¡¡C curve: between 5 and 10 In ¡¡D curve: between 10 and 20 In ¡¡Endurance ¡¡¡à 4000 ¡¡Terminal protection ¡¡IP2LX