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.
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High-Quality DC Contactor Products
It is our mission to produce stable and reliable products, no matter which
product you choose, our customer service is always on call.
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News & Exhibitions
What does a high voltage contactor do?
High voltage coil contactors are essential components in electrical systems, enabling the safe and efficient control of high-power circuits. These devices play a critical role in industries such as power distribution, renewable energy, electric vehicles, and industrial automation. This article explores the function, working principle, and key applications of high voltage coil contactors.  
In electrical and electronic circuits, both shunts and resistors play crucial roles in controlling current and voltage. While they may seem similar at first glance, they serve distinct purposes. This article explores the key differences between a shunt and a resistor, their applications, and how they function in various circuits.  
How to Select the Right DC Contactor for Electric Vehicles
DC contactors are key components in electric vehicles (EVs), ensuring safe and efficient power distribution between the battery pack, motor controller, and charging system. Selecting the right EV contactor requires evaluating voltage rating, current capacity, switching performance, and environmental durability. This guide explores the key factors to consider when selecting a DC contactor for EV applications.
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