plastic case circuit breaker is an electrical device which can automatically cut off the current when the current exceeds the jump setting. plastic shells refer to the use of plastic insulators as the shell of equipment to isolate between conductors and grounding metal parts. plastic case circuit breakers will contain thermomagnetic trip units, and large circuit breakers will be equipped with solid state trip sensors. the rated currents of common circuit breakers are as follows: 60, 75, 80/100/126/160/200a, etc. when using circuit breakers,
often encounters contactors and circuit breakers connected but not powered on. if it is used without testing, it will lead to circuit failure. many people suspect that the reason is that the product is out of order, in fact, because we have problems in the way of wiring, resulting in the absence of phase or short circuit between products. now let's introduce the correct way of connection. to avoid such a situation,

p from {span 0} 1, lead  

should first select the appropriate lead before wiring, it is better to use single copper wire, if not, use multiple soft copper wires, solder wire heads together with tin to form a single wire. the purpose of this is to prevent the leakage of multiple copper wires from short circuit. the connection diagram of

p from

circuit breaker and contactor

2, connection mode
connection mode all adopt wire-frame connection mode. the advantage of this method is that the internal contact will not slip as if it is directly pressed next to the wire-frame, and it is easy to cause static contact position when tightening the screw. shift, resulting in poor contact with circuit breakers.

p from {span 0} 3, screw selection  

contactor uses screw cap pressing line, the screw pressing sheet is ^ type, the reason is that when the screw is screwed down, the pressing sheet will press down the lead line, will also allow the product to have a balance point in the wiring, wiring will not occur uncompression, reducing the failure rate of

.