HZ5B型组合开关系HZ5型的改进型，适用于交流50HZ，额定工作电压至380V及以下的电路中作电动机起动、停止、换向、变速之用。可作为电路控制开关、主令控制开关及电焊机开关等。

      HZ5B combination switch is the improved type of HZ5, mainly used in the circuits of AC 50Hz, rated voltage 380V and below, to start, stop, commutate, shift speed. It can be used as circuit control switch, master control switch, and switch for welding machine and etc.

分类 Classification

1、按电流大小分有10A、20A两种；

2、按用途分为转换电路用和直接开闭电动机用两种；

3、按接触系统节数有1~8节、共8种；

4、按操作方式与操动器位置的组合分有8种。

1.As current rating: 10A, 20A two kinds

2.According to application, divided into the type of transferring circuit and the type of directly start/stop motor

3.According to the contact system has 1 -8 sessions, eight kinds.