The circuit breaker above the terminal as the power line is usually called the power supply terminal, the lower terminal is usually used as the load connection is called the load terminal. So can the power connected to the load side, and the load connected to the power side? No. Because in our country, the most widely used in the field of electric shock protection is the electronic leakage circuit breaker. Since the tripping coil of the electronic leakage circuit breaker is charged instantaneously only when the operation signal is obtained, when the tripping circuit of the leakage circuit breaker is tripped, Power off immediately. If the leakage circuit breaker on the line and under the line connected reverse, resulting in leakage circuit breaker action, the voltage is still added to the trip coil, it will burn the coil, so that the entire leakage circuit breaker loss of leakage protection. Cnc Waterjet Cutting,Cnc Waterjet Equipmen,Waterjet Cutting Equipment,L Series Split Type Machine YC PRECISION TECHNOLOGY & MACHINERY CO.,LTD , https://www.yc-technology.com