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              塑殼斷路器和微型斷路器有什么區別?

              來源:http://www.cekidots.com/ 日期:2021-07-21 發布人:tongjid

              電流等級

              Current class
              塑殼斷路器電流等級高2000A的都有.而微型斷路器大電流等級在125以內。由于兩者在容量上的差距,在具體工作中,塑殼斷路器的有用面積也大于微型斷路器,同時接入的導線也比較粗,可以達到35平方以上,而微型斷路器只適合接10平方以下的導線。所以一般對于室內情況,房間較大的更適宜選擇塑殼斷路器。
              Moulded case circuit breakers have high current class of 2000a, while miniature circuit breakers have high current class of less than 125. Due to the difference in capacity between the two, the useful area of MCCB is larger than that of MCB in specific work, and the connecting wire is thicker, which can reach more than 35 square meters, while MCB is only suitable for connecting wires less than 10 square meters. So generally for indoor conditions, the larger room is more suitable to choose MCCB.
              安裝方式
              Installation method
              塑殼斷路器以螺釘安裝為主,容易壓緊,接觸良好,運行穩定。而微型斷路器主要是通過導軌安裝,有時候由于力矩不夠而引發接觸不好。由于兩者不同的安裝方式,從而導致塑殼斷路器的安裝比小型斷路器更穩固,難度也更低。
              Molded case circuit breaker is mainly installed with screws, which is easy to press, has good contact and stable operation. The micro circuit breaker is mainly installed through the guide rail, sometimes due to insufficient torque and poor contact. Due to the different installation methods, the installation of MCCB is more stable and less difficult than miniature circuit breaker.
              操作與壽命
              Operation and life
              操作上看。塑殼斷路器對過流和短路采用兩套裝置分別保護,過流保護動作值可以人工調整,方便迅速。而微型斷路器對過流和短路共用一套裝置,電流不可調,導致很多時候無法解決問題。塑殼斷路器相間距離大,且有滅弧罩,滅弧能力強,能承受更大的短路電流,且不易引發相間短路,從而使用壽命也比微型斷路器校長。
              In terms of operation. Moulded case circuit breaker adopts two sets of devices to protect over-current and short circuit respectively. The action value of over-current protection can be adjusted manually, which is convenient and rapid. The miniature circuit breaker shares a set of device for over-current and short circuit, and the current is not adjustable, which leads to many problems that can not be solved. Moulded case circuit breaker has large phase to phase distance, and has arc extinguishing cover, strong arc extinguishing ability, can withstand larger short circuit current, and is not easy to cause phase to phase short circuit, so its service life is longer than that of miniature circuit breaker.
              使用靈活性
              Flexibility of use
              在這一方面還是塑殼斷路器更加突出,其在設置的靈活性上比微型斷路器更好。塑殼斷路器的過流和短路保護裝置是各自獨立的,使用中過流保護的動作值還可以做出靈活調整。微型斷路器的過流保護和短路保護是統一裝置,調節靈活性上存在一定不足。
              In this aspect, MCCB is more prominent, and its setting flexibility is better than MCB. The over-current and short-circuit protection devices of MCCB are independent, and the action value of over-current protection can be adjusted flexibly. The over-current protection and short-circuit protection of miniature circuit breaker are unified devices, and there are some shortcomings in regulation flexibility.
              根據以上的情況看似乎都是微型斷路器處于下風,但其實對于某些時候,還是需要選擇微型斷路器的。比方說需要提高線路時,因為微型斷路器的動作靈敏度高,分斷動作快,更有利于對線路及電器的保護。由此可以看見兩者都有著各自的優點和適合使用的地方,關鍵是要充分了解塑殼斷路器和微型斷路器的區別,并根據自身的需要進行選擇。
              According to the above situation, it seems that the miniature circuit breaker is at a disadvantage, but in fact, for some times, it is still necessary to choose the miniature circuit breaker. For example, when the line needs to be improved, because the micro circuit breaker has high sensitivity and fast breaking action, it is more conducive to the protection of the line and electrical appliances. It can be seen that both of them have their own advantages and are suitable for use. The key is to fully understand the difference between MCCB and MCB, and choose according to their own needs.


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