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Molded Case Circuit Breakers (MCCB)
A new generation of molded case circuit breakers in the product structure, operating mechanism, contact arc extinguishing system, adjustable thermal release and electronic tripping technology and other older generation of molded case circuit breakers have a greater breakthrough, so that The product of comprehensive technical and economic indicators greatly improved. The development of a new generation of molded case circuit breaker attaches great importance to improve the performance of the technology while reducing the size, so the new double breakpoint break technology more and more attention.
 
With the improvement of short-circuit breaking ability, many products have achieved Ics = Icu, and some series of products have Icw specifications for high current rating, which makes it possible to realize selective protection between upper and lower casings. Many new generation products not only greatly reduce the size, but also reduce the shelf level. With the electronic tripping volume reduced and the cost reduced, the full range of electronic tripping device is already a clear trend, the application of electronic tripping device molded case circuit breaker its protection performance is more perfect.

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The development of power circuit breaker


As one of the most important products in low-voltage electrical appliances, power circuit breakers have been favored by many people. From the introduction of new products, can be described as highly competitive. Framework circuit breaker (ACB) a new generation of frame circuit breaker not only its overall performance and major technical indicators have a more substantial increase, and increased technical performance more prominent practicality. Large current overall structure of a new generation of large-size frame circuit breaker a mainstream development.

Next-generation frame circuit breakers not only further reduce the size of each product specifications, and the entire series of specifications are also reduced. New generation of frame circuit breaker contact arc extinguishing system mostly single breakpoint structure. Many of the new generation of frame circuit breakers feature modular designs for both internal and external accessories to facilitate standardized assembly and assembly, as well as ease of access, replacement and maintenance. The new generation of frame circuit breaker electronic controller has a powerful function. All next-generation products are equipped with a communication interface that allows internal busses to be used internally with the new generation of frame circuit breakers in major industrial field bus systems.




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A new generation of molded case circuit breakers

A new generation of molded case circuit breakers have ground fault protection and residual current protection. A new generation of molded case circuit breakers also have residual current protection, the structure generally used in two ways: twin-type structure and assembled structure, smaller twin-type structure, and easy maintenance and replacement; derived flexible assembly structure.

In order to meet the needs of the system, each paying more and more attention to the development of attachments, provides a wealth of internal attachments and external attachments. A new generation of molded case circuit breakers have communication capabilities, which are easily connected to various fieldbus systems (such as Profibus, Devicenet, Modbus, etc.) through an external communication adapter for remote monitoring.


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