With the increasing popularity of moulded case circuit breakers, many industries can use them, as can households. However, a moulded case circuit breaker is a matter of personal safety and should not be purchased lightly. It is not like ordinary goods that you don't like to buy and throw away. If the quality of the plastic case circuit breaker is not up to standard, there will be very serious consequences. So what kind of plastic case circuit breaker should you buy? According to industry insiders, consumers should buy machines that meet certification standards. For example, there is the IEC mark and the Chinese GB standard for low-voltage electrical appliances, which are the most basic. At present, China's low-voltage electrical standards are becoming more and more international and all machines that meet this standard can be used.

Quality certification for moulded case circuit breakers

In addition to the standard certification, moulded case circuit breakers should also have quality certification, such as IS0 international quality system certification, classification society ISO quality system certification and so on. You may be wondering why a moulded case circuit breaker would have the latter quality certification? Because this quality certification means that the machine is very reliable, moisture and shock resistant, and only with these two certifications can the product be used properly. Of course safety certification is also essential. The safety certification mentioned here is divided into regions, such as the US UL certification and the Great Wall CCEE certification. If you buy a domestic moulded case circuit breaker, you must have the latter certification.

To buy a moulded-case circuit breaker with qualified product quality, you have to check that it has one that does not pass the certified technical standards described above. If all our corporate certifications are available, it means that the company is qualified in terms of quality and safe production performance. Next, consumers will need students to choose according to the specific environment of the network used in China. If the rated current is under 630A, the short-circuit current is not a big influence, you can choose your own plastic case make the circuit breaker. If the rated current is large, then it is best to choose a frame type circuit breaker. If the short-circuit current in the branch circuit is very high, other important factors will have to be considered. However, there is one issue that needs the teacher's attention and that is that the moulded case circuit breaker must have a leakage protection policy measures, otherwise it cannot be purchased directly.

After considering all the factors, we must consider the cost performance of the plastic case circuit breaker. Different brands of plastic case circuit breakers are available at different prices. All consumers want to buy a cost effective product and will have to shop around to see which plastic case circuit breaker is the most affordable and highest quality. After meeting these basic requirements, the scalability of the expanded plastic case circuit breaker should be considered.

By expandability I mean how the load profile of the plastic case circuit breaker can be analysed within a certain range and how modular units can be installed to enhance itself. These things are really important, so make sure you think about them.