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JONCHN has Shined at Kenya Power Exhibition

As the world pays more and more attention to clean energy and sustainable development, the power and energy industry is ushering in unprecedented development opportunities.Recently, JONCHN transmission and distribution equipment became the highlight of the exhibition because of its excellent prod...

What is the difference between molded case and frame circuit breaker? How to choose the two?

Can plastic case replace the frame when rated current, breaking capacity and protection are all met? For example, can a 1600A molded case circuit breaker be used on the main incoming line? If you can, why is the common practice still using frames instead of using much cheaper molded cases? Mould...

The Ultimate Guide to MCCB Circuit Breakers: An Introduction to the JCM3L Series

If you are looking for high quality MCCB circuit breakers in the market, JCM3L series is your best choice. These residual current circuit breakers are designed for use in distribution networks with AC 50Hz, rated voltage 400V and rated current up to 800A. They provide vital protection to personne...


After more than 30 years of development, it has developed into a specialized company with international operation.

About Jonchn

JONCHN Group, founded in 1988, is headquartered in Liushi, Wenzhou, the “electrical capital of China”. It specializes in the R & D, production and sales of transmission and distribution equipment, intelligent fire protection, power supply and other products. the implementation of parts production to finished product sales and service in one of the professional company.