Zhejiang Dongya Electronic Co., Ltd is a manufacturing enterprise of producing, developing and selling high voltage&low voltage DC contactor, relay, shunt as well as hydraulic circuit breaker.
The products are mainly used in many fields as follows: telecom system, new energy vehicles, electric vehicles, charging pile, engineering machinery, household electrical appliance, converter, solar PV and many other electronic control systems. Our products are exported to the United States, Canada, Italy, Brazil, Turkey, India, Mexico, Germany, New Zealand and many other countries and also sold in the regions of Taiwan and Hong Kong.
We are professional DC contactor maker that are dedicated to providing high-quality products and excellent services for customers. Our main customers are Huawei, Delta, Vertiv, Siemens, ZTE, Baic Yinxiang, Sinexcel and so on.
Dongya has advanced technology, equipment and rich experience, and also have all abilities and resources about the product design, mold manufacturing, parts processing, assembly, calibration and inspection. For many years, with the spirit of "preciseness, refinement, credibility and innovation", Dongya has always been improving the manufacturing technology and equipment to raise the level of technology and product quality.
- 50A Contact switch capacity, Small volume；
- A set of bridge type N.O.contacts contact circuit has "+", "-" polarity；
- Application：Telecom equipment、Solar system、 Engineering machinery、Electromobile、Electric vehicle、Charging system、Train、Ships、UPS etc.；
- Safety Approvals：CCC
- Comply with the ROHS
|Contact type||1H (SPST-NO)|
|Contact material||Cu Alloy|
|Rated load current of contact(Resistive load)||50A×450V DC (DC-1)|
|Contact voltage drop||50A@max.80mV|
|Insulation resistance||Min. 100MΩ @ 500VDC|
|Dielectric strength||2200VAC 50 Hz/60 Hz (1 minute)|
|（Between Insulated Electric Parts）|
|Pick-up time||Max. 20ms.|
|Release time||Max. 10ms.|
|Operating ambient temperature||-40℃~+85℃|
|Storage ambient temperature||-55℃~+120℃|
|Relative humidity||20%～90% RH|
|Electrical life||Please refer to diagram of resistance load life|
Outline mounting dimension and circuit diagram
- 100A Contact Switching capability
- SPST-NO Contact Arrangement
- Coil Power Waste : 7.2W.
- Application: For Electric Control System Of Communication Power Supply、Engineering Machine、Electromotion Forklift、Motor Car、Train、Watercraft and UPS etc.
- TUV file No.：50054080
- UL file No.：E145623
- CCC file No.：2004010304116988
|Contact material||Ag Alloy|
|Contact Rating||100A 48VDC|
|Load type||Resistive Load|
|Pick-up Voltage||（85～110）%V of coil rated voltage|
|Drop-out Voltage||（5～40）%V of coil rated voltage|
|Coil voltage range||（85～110）%V of coil rated voltage|
|Contact Pressure Drop||At raged voltage≤80mV|
|Insulation Resistance||Min. 100MΩ at 500VDC|
|Dielectric Strength||1000VAC 50 HZ/60 HZ (1 minute)|
|(Between Insulated Electric Parts)|
|Operate Time||Max. 50mSec.|
|Release Time||Max. 50mSec.|
|The shocking of fixed point||(10～200)HZ、Acceleration≤3.5g|
|Mechanical Life||100,000 Operations (no load)|