About us

Hi there CNTN electric in China!

Who We Are

Our product range includes miniature circuit breakers, molded case circuit breakers, intelligent dual-power automatic transfer switches, power meters, knife switches, and more.

About US

Over the past decade or so, Zhengmai Electric Co., Ltd. has won the general trust of colleagues from all walks of life and a large number of customers with its strong technical strength, solid economic foundation, complete inspection equipment, reliable product quality and excellent after-sales service. The series of products and specifications produced by the company, all products that require a production license and certification according to national regulations have successfully obtained production licenses or safety certification certificates. And it has been among the first batch of companies in the same industry to obtain the national mandatory CCC certificate and ISO-9001 quality system certification.
The company has always adhered to the principle of “quality first, customer first”, and provides you with the most ideal products with high quality, affordable prices and honest services.

Our company adheres to the belief that “quality first, customer foremost”. We connect all links in the electrical ecosystem to jointly build a smarter and more sustainable future.

Our certificate wall

This is our Certification & Qualification Wall—every certificate here is solid proof that our products fully meet China’s top-tier certification standards. We invest 1 million RMB annually in maintaining and upgrading these certifications, because we believe premium quality deserves uncompromising investment. Choose our products, and you’ll enjoy complete peace of mind—no worries about quality, compliance, or after-sales support.

Certificate Wall

CNTN ELectric product wall

This electrical product wall before your eyes is more than just a product display area—it’s a “visual business card” that showcases our robust technical strength and full-scenario product portfolio!

From miniature circuit breakers and residual current devices (RCDs) that safeguard electrical safety, to surge protectors that resist circuit surges, high-breaking capacity circuit breakers and molded case circuit breakers (MCCBs) tailored for high-load scenarios, to power meters for precise monitoring, automatic transfer switches (ATS) for intelligent switching, and load isolation switches that ensure circuit isolation safety—every product has undergone rigorous refinement.

They cover all scenario needs, from residential power distribution to industrial power supply, and guarantee your electrical safety whether in household or industrial electricity use.

Our Advantages

Reasons You Should Choose Us

We have over a decade of rich experience in production and R&D,
along with fast delivery capabilities and
high-quality after-sales service.

24/7Hour Online Services

Product Quotation and Technical Consultation

Products Quality assurance

5-Year Warranty, Worry-Free After-Sales Service

Factory Direct Sales Price

You will get the cost-effective factory price.

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We sincerely welcome your inquiries!