If you want safer circuit protection, the circuit breaker is your best choice. It can escort your circuit safety at any time. With it, you don't have to worry about events such as short circuit and circuit fire. You can take a penny home safely. The use categories of circuit breakers are also divided into two categories: the first is selective type and the second is non selective type. For these two types, they should also be selected according to the situation.

灭弧介质对于断路器的构造来说是一个很关键的东西，它一般分为油浸式与六氟化硫，每一种断路器的内部都会含有这其中的一种物质，当发生异常情况时，这两种物质对于断电起了很大的作用，他们相当于灭火器，很快的就将这场火给扑灭，在短时间内就可以化险为夷。

Arc extinguishing medium is a key thing for the structure of circuit breaker. It is generally divided into oil immersed and sulfur hexafluoride. Each circuit breaker will contain one of these substances. In case of abnormal conditions, these two substances play a great role in power failure. They are equivalent to fire extinguishers and put out the fire quickly, It can be saved in a short time.

断路器在各个方面都会有很多的种类，依据它的动作速度，可以将它分为快速型与普通型，快速型它的性价比更高，因为它的反应速度非常的快，可以在很短的时间内将判断出的异常情况化险为夷，对于普通型的断路器，虽然它的效果与快速型是一样的，但是它的反应速度与断电速度还是要缓慢一点。

There are many kinds of circuit breakers in all aspects. According to its action speed, it can be divided into fast type and ordinary type. The fast type has higher cost performance, because its reaction speed is very fast and can turn the judged abnormal conditions into danger in a very short time. For ordinary circuit breakers, although its effect is the same as that of fast type, But its reaction speed and power-off speed are still a little slower.

快速型的断路器在运行的时候它的内部结构非常快，所以在很多大工厂采用的都是快速型断路器，因为工厂的功率大，普通型的断路器无法在短时间内就将断电处理甚好。普通型的断路器适合在家庭电功率中使用，因为家里的电功率较低，一般是220伏左右，这个电压对于普通型断路器来说非常的简单。

The internal structure of the fast circuit breaker is very fast during operation, so it is used in many large factories. Because of the high power of the factory, the ordinary circuit breaker can not handle the power failure well in a short time. Ordinary circuit breakers are suitable for use in household electric power, because the electric power at home is low, usually about 220 v. this voltage is very simple for ordinary circuit breakers.

ABB微型断路器/断路器它的体积不是很大，所以它的占地领域不大，断路器的阻值非常的大，在电路中起到了阻碍的作用，但它与一般的阻值工具电器是不同的，因为它可以自动识别电压的变化，然后进行自动的断电处理，这是它的一大特性。总的说来断路器它的作用非常的强大，购买它，就是买了一份人身保险。

ABB miniature circuit breaker price / circuit breaker its volume is not very large, so it covers a small area. The resistance value of the circuit breaker is very large, which plays an obstacle role in the circuit, but it is different from the general resistance tool electrical appliances, because it can automatically identify the change of voltage and then carry out automatic power-off treatment, which is one of its characteristics. Generally speaking, the function of circuit breaker is very powerful. Buying it means buying a life insurance.