We are are factory Specialize in circuit breaker. yuanhow is a professional manufacturer of low-voltage circuit breakers. It is a national high-tech enterprise, a "Specialized, Refined, Characteristic and Innovative" medium-sized enterprise in Zhejiang Province. All products manufactured by the company have passed the certification of China Quality Certification Center (CQC) and obtained CCC also CE certification certificates. Additionally, the company has obtained certifications for the ISO systems. The company have a high-quality R&D team with strong innovation capabilities and always adheres to independent innovation. Different kinds of products are available in our company. We're pleased to get your Inquiry and we will reply you as soon as possible. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. Our MCCB undergo rated breaking capacity test as part of our reguular quality checks . after testing the MCCB operated normally. Confirmed that the product s have passed the testing , this is how we ensyre the saftety and reliable behind every circuit breaker. Contact with me by +86 13712999663