Dc Contactor,Power relays,shunts,circuit breaker

Who We Are

Professional Manufacturer
of High and Low Voltage DC
Contactors

DONGYA is industrial technology Professional design and manufacture dc contactors manufacturers. We specialize in designing, manufacturing and selling High & Low Voltage DC Rated Contactor, Shunt and Hydraulic Circuit Breaker. Our products are widely used in Telecommunication, EV, Mechanical Engineerings, Power Distributions and etc. We Provide more than 10 production lines , Exported to more than 200 countries and regions.

30% Customized Price Than The Market

Top-notch Processes and Quality

We have passed IATF16949, ISO9001, ISO14001 and ISO45001 certifications. We offer dozens of product series with more than 300 models to meet your specific needs. Global partners rely on our OEM services.

Well-equipped

With more than 10 production lines and advanced production equipment and laboratories, high current dc contactor manufacturers ensures that product quality and delivery speed are at the leading level in the industry.

Experienced team

With 30+ years of experience in the solenoid DC contactor production industry, the dc contactors manufacturers now has more than 300 experienced employees to ensure that the delivery speed of orders is at the leading level in the industry.

Market leading products

Our emphasis on continuous research and development enables us to raise the bar with innovative DC rated contactor products that perform efficiently in a wide variety of applications.

Strict production process

Maintaining strict standards throughout the manufacturing process guarantees industry-leading quality throughout the optimization process from raw materials to finished products.

General service

Always exceeding your expectations, we are committed to providing a fast and seamless product sourcing experience, including project consultation to capture your ideas, custom products for tailor-made solutions, and responsive after-sales support.

News & Exhibitions

How to Diagnose a Failing DC Contactor: Common Symptoms and Troubleshooting Steps

When an electric vehicle fails to start, a charging station refuses to deliver power, or a renewable energy inverter stops feeding the grid, the root cause is often traced to a component that is hidde

DC Shunt Selection Guide: How to Match Current Ratings from 1A to 2500A

A precision DC current measuring resistor that is correctly sized operates for years within its rated temperature range, delivering a stable millivolt signal that accurately represents the current in

Top 5 Applications of Shunts in Energy Storage, EV Charging, and Industrial Inverters

In power electronics systems that manage large DC currents, the component that measures the current must be accurate, stable over time, and immune to electromagnetic interference. A DC current sensing

How to Choose the Right Coil Voltage for a 12V / 24V / 48V DC Contactor

The coil voltage of an electromagnetic power switch is one of the most frequently overlooked parameters during replacement or system design. On a schematic, the difference between 12 V, 24 V and 48 V