Q:Where will the circuit breaker auxiliary contacts be used? ,

Molded case circuit breaker is the grounding wire terminal contact, interrupter, release and operating mechanism are installed in a plastic shell,

Q:How long does the circuit breaker last?

Circuit switch is the number of letters in front of the number p, you say 2p, is the two pole switch.

Q:Is this an air switch or a leak protector?

The working principle is simple to say that any electrical appliances will be hot at work and the degree of heat and power into Proportional.

Q:Circuit breaker main circuit control power, how to wiring?

which should be not less than the effective value of the short-circuit current at which the contact begins to be separated) by the rated voltage. Of course, to single or three-phase. for reference only.

Q:Isolation switch, circuit breaker, open the three What is the difference between ah

Isolated switch is a high voltage switchgear mainly used in high voltage circuit

Q:Leakage circuit breaker old jump how to do

so do not use the earth switch to do the main switch, the proposed general switch with the general air switch ... ...

Q:Short trip also tripped, overload also trip it?

The first no overload and short circuit protection only leakage protector, also known as RCD leakage switch

Q:Why the high-voltage circuit is equipped with isolation switch and circuit breaker

The circuit breaker has an overload protection function that can operate with current. But the contact is covered by the arc extinguishing device, the break point is not visible.

Q:What is the difference between open air and circuit breakers?

The air circuit breaker is a switchgear with a variety of protection functions that can cut and turn on the circuit at rated voltage and rated operating current conditions.

Q:The difference between the leakage switch of the air switch circuit breaker

Circuit breaker It is a switch function, but also to automatically protect the low-voltage distribution of electrical appliances. Its role is equivalent to the knife switch. Fuse. Thermal relay and other electrical components of the combination