Application:
It is suitable for the electric circuit with the rated voltage below 690V and the rated current below 100A in the AC 50Hz. It is used for the manual infrequent connection or disconnection of the circuit as the control and conversion. It can also be used to control the starting, speed changing and reversing of small capacity AC motor and as the master control and circuit measurement. It is widely used in welding machine, machine tool, knife grinder, charger and other small mechanical equipment.
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