What are the commonly used circuit breaker models?
Release time:
2020-12-07
As we all know, circuit breaker is an electrical product, and it is also an electrical product that can ensure the safety of electricity use in our daily life. Because the circuit breaker has the ability to independently judge whether to cut off the circuit when there is a problem with the circuit load or voltage, so as to achieve the safety of electricity use in our life. Ensuring the safety of our electricity consumption can effectively protect life safety and a purpose of prevention and protection, and avoid any hidden dangers that we fail to detect, thus bringing disasters. We know a little about the performance of circuit breakers, so when choosing, because circuit breakers have various models and specifications, how to choose the one that suits you? In fact, there are many references for the model specifications of the corresponding circuit breakers. The following article is about the analysis of the parameter selection of circuit breakers. There are many models of circuit breakers, and the corresponding volumes are not the same. There is also a big difference, and we can properly understand it comprehensively.
How to choose the model and specification of circuit breaker?
(1) There are many types and specifications of circuit breakers, and it may be difficult for beginners to choose. In fact, circuit breakers can be classified by rated current, and 1, 2, 3, 4, 5, 6, 10, 16, 16, 20, 25, 32, 40, 50, 60, 63, 100 (A) these are The rated current value of the circuit breaker.
(2) According to the number of poles: single pole, two poles, three poles, four poles;
(3) According to the tripping form: C type (5ln~10ln), D type (10ln~16ln)
The models of each company are different, generally speaking, a few poles and a few A can be used. The common and excellent miniature circuit breakers are: C65, C120, EA9, INT125 and other series products.
The parameters are different as follows:
(1) N---breaking capacity, N is 6000A, H is 10000A, L is 15kA.
(2) C---trip curve, B is electronic protection, C is power distribution protection, D is power protection.
(3) 20A---rated current, there are 1, 2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63A.
(4) 2P --- the number of poles, there are 1, 2, 3, and 4 poles.
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