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      HZ10系列組合開關主要適用于交流50HZ、額定工作電壓380V及以下，直流電壓220V及以下，額定電流至100A的電路中，作手動不頻繁的接通、分斷和轉換電阻電感混合負載電路和電流電阻負載電路， 也可控制小容量交流電動機。

       HZ10-□/E119電焊機用轉換開關可用于電焊機上調節電流100A以下，交流50HZ (或60HZ)、額定電壓380V及以下作電氣設備的主電路，輔助電器的變換之用。

HZ10 combination switch is mainly used in the circuits of AC 50Hz, rated voltage 380V and below, DC voltage 220V andbelow, rated current up to 100A, to manually make, break and transfer circuit with inductive and resistance loads non-frequently, also it can directly control small capacity alternating motor.

HZ10-D/E119 switch is used in welding machine to adjust the current of less than 100A, AC 50Hz (or 60Hz), rated voltage 380V and below, and transfer between the main and spare appliances.