Leakage circuit breaker type
We all know that the earth leakage circuit breaker of the basic function and the general low-voltage circuit breaker is the same, but on the basis of this, using the residual operated protection device in the relevant principles, can be at the critical moment of breaking current, to protect the circuit, at the same time the most important is to protect the personal safety. And is called the leakage circuit breaker is mainly the leakage protection function. This paper mainly talk about the leakage circuit breaker brand models, the selection principle of something.
The reason why this article, mainly a few days ago to see a customer a question, DZ47LE DZ47 circuit breaker circuit breaker and what is the difference between. In fact, the most direct is the type in "LE" these two letters, whereas in the breaker brand models, LE represents the circuit breaker with electric leakage protection function, that is to say it is a leakage circuit breaker. Here a little added another, is a circuit breakers molded case circuit breaker and it is leakage circuit breakers are not in conflict, as we commonly used DZ20L series leakage circuit breaker, material from the appearance, it is a molded case switches, but functionally, it is also a leakage switch, mainly classification different. If you want to learn some leakage circuit breaker brand models of specific meaning, can be the first study we plant some models, will have a general understanding of.
Leakage circuit breaker with modular design, the product is compact but complete function. The core component is the operating mechanism, a zero sequence current transformer, electromagnetic trip device, an electric leakage tripping device. The zero sequence current transformer is the most important part of. An electric leakage tripping device of electromagnetic and electronic type two, the difference between them is the former can directly through the release of leakage current of main switch, the leakage current through the electronic magnification circuit after amplified can release action with the main switch. Leakage circuit breaker working principle:
On the leakage circuit breaker type, which also said, models with LE word, but the specific or with different models, and different brands to determine. On the general model, each big brand, including our production specifications as well, such as the most common DZ47-63, DZ47-100 models.
A bit at the end that brand. Leakage circuit breaker as the breaker's ordinary type, basically all breakers have involved, foreign, or Schneider and Siemens reliable comparison. Domestic or by imitation, the lack of real epoch-making product, but because of many manufacturers, competition is relatively intense. Some of these manufacturers in addition to the general model, also have their own R & D and production model.
The above information by the country electric switch factory provides reference materials ( www.jiandq.com )