1. Products show


2. Parameter

Bridge Unicoil closed contacts

Rated coil voltage: Ue=48V

Maximum coil voltage=57.6V

Mininum coil voltage=38.4V

Load current=100A

Dielectric strength=50HZ

Coil resistance =603.6-708.4

Sucking time 40ms

Releasing time 30ms

Mechanical life= 10,0000 times

Electric life=1000 times

Weight=0.32KG

3. Usage condition

Ambient Temperature: work: - 40 ~ + 60; storage and transportation: - 40 ~ + 70 

Relative humidity: 95% at 40 
Altitude: not more than 2000 meters.

Vibration: 10-55hz,
Amplitude: 0.35mm
Impact: 30m/s2 

4. Standard,safty and environmental protection

(1)Comply with GB14048.4-2003 / IEC60947-4-1:2000 low voltage Switching equipment and control equipment electromechanical contactor and motor Starter standard;

(2)YD/T585-2010General credit distribution equipment technical conditions.

5. Order mark standard


6. JQ-50H(B)/48-48AWCurrent curve


7. the Circuit diagram of the configuration, installation and terminal


8. THe Schematic diagram of the terminal circuit

9. Factory pics 


10. about us

Shenzhen Zhenhua Qunying Electronics CO.,Ltd. Was Founded on July 6 , 2012. It's located in in Shenzhen, China's first Economic zone. Our plant was built in 2017. We are professional manufacturer of Electronics focusing on researching, producing and selling high(low) pressure Contactor, relay(Magneticretaining relay), shunt resistor, potentiometer.

11. Our mission
A.  Focusing on quality,

B.  Innovation is our life,

C.   Offering best service to our customers,

D.   Dedicating all the energy to our Business,

E.   Thankfulness to all.

We strictly supervise of products' quality and have Been trying to supply the best service and competitive price to our customers. In order to guarantee the interest of customers, we organize a professional Technical team to track industry market and researching suitable products to Meet our customers' needs.


12.High quality service 
Best Service with after-sales service and consultation,we Have an excellent customer service driven approach to our business, unlike most Sites we are consistently available via sales hotline, email, skype or MSN and Always respond to emails within 30 mins.

13. Packaging and shipping

(1) Packaging
Export carton, or Customers requirements.

(2)shipping 
by air or by Sea(FOB port: Shenzhen,Guangzhou), by express(DHL, UPS, TNT, FEDEX)