High Voltage DC Contactor manufacturer

Author : Site Editor
Publish Time :07-25-2019

Supplier introduction

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.

TEL: 0086-577-62812228/0086-577-62815712

FAX: 0086-577-62815722

E-mail: dongya@cndongya.com

product description

            High Voltage DC Contactor DH50C

High Voltage DC Contactor manufacturer_High Voltage DC Contactor DH50C


  • 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


Product No. DH50C□ANA
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
Vibration(Sinusoid、80~2000HZ、peak) (80~2000)HZ,≤20g
Shock(11ms,1/2 Sinusoid、peak、pick-up) ≤20g
Mechanical life 300,000times
Electrical life Please refer to diagram of resistance load life
Pollution level

Outline mounting dimension and circuit diagram

High Voltage DC Contactor manufacturer_High Voltage DC Contactor drawing


Normal Open 100A DC contactor ZLJM-100A 

High Voltage DC Contactor manufacturer_Normal Open 100A DC contactor


  • 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


Model No. ZLJM-100A/24
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.
Ambient Temper -40℃~+60℃
The shocking of fixed point (10~200)HZ、Acceleration≤3.5g
Shocking (60~100) times/min、Acceleration≤4g
Mechanical Life 100,000 Operations (no load)
News Categories
Contact Us for All Your Needs
Our professional team will be online to provide you with the most suitable products for you.
Contact Us