The company’s product portfolio covers intelligent universal circuit breakers, residual current operated circuit breakers (auto-reclosing type), PV-specific circuit breakers, intelligent metering switches, electronic circuit breakers, IoT carrier circuit breakers, and other series of products. The company has a staff of more than 170 employees, including over 30 full-time professional R&D and technical personnel dedicated to the research, development, and operation of circuit breaker products, endowing the company with strong independent R&D capabilities.
In addition to establishing its production base and R&D center in Yueqing, Wenzhou, the company has set up comprehensive sales and service centers in Shandong, Hebei, Xi’an, Hunan, and other regions to fully meet market and customer demands.
Adhering to the corporate tenet of "Survive by quality and reputation, develop by technological innovation, and revitalize national industry", the company has built a quality testing center covering more than 200 square meters, equipped with laboratories for EMC tests, mechanical property tests, and material mechanical tests. The complete electrical testing capacity ensures that every Chengtong product can withstand rigorous market inspection.
In recent years, the company has continuously increased investment in technological transformation and advanced automated production equipment, adopted lean production management, improved production capacity and output, guaranteed stable product quality, and achieved continuous annual output value growth.
Chengtong Technology is one of the leading enterprises in the auto-reclosing circuit breaker industry equipped with high-precision full-computer constant-current testing equipment and automated production lines for reclosing products. The automated testing accuracy of circuit breaker parameters, including current, voltage, residual current, and power factor, reaches Grade 0.5. In the aging testing of auto-reclosing circuit breakers, the company takes a leading position in the industry, capable of conducting full-functional aging tests on 2,000 reclosing circuit breakers simultaneously.
Backed by a professional R&D team, rich technical experience, advanced production and testing equipment, as well as standardized and strict quality management systems, the company ensures the advanced performance and reliable quality of all products. It has obtained ISO9001 quality management system certification, ISO14001 environmental management system certification, and OHSAS18001 occupational health and safety management system certification, as well as CCC certification. The company owns more than 30 inventions and utility model patents. It has been awarded numerous honors, including National High-Tech Enterprise, Specialized & Innovative Enterprise, Zhejiang Provincial Contract-abiding and Creditworthy Enterprise, AAA Credit Enterprise, Wenzhou Credit Management Demonstration Enterprise, Advanced Enterprise, and Excellent Supplier.
While maintaining steady development, the company purchased an industrial land of over 6,000 square meters in 2020 and invested 40 million RMB in constructing nearly 20,000 square meters of standard factory buildings, which were fully put into operation in 2022. Chengtong products are sold nationwide and have won wide customer recognition and a good market reputation for integrity and reliable quality. Among them, residual current-operated auto-reclosing circuit breakers rank among the top-selling products in the domestic industry.
In the future, adhering to the development goal of "becoming a leading provider of advanced smart grid products" and the mission of "developing the enterprise through technology and undertaking social responsibilities", Chengtong will strive to grow into a modern first-class electrical enterprise with standardized management, leading technology, and outstanding benefits, expanding its business nationwide and globally.