Customized grounded power switch JNH4 Series

Cylindrical contact is national patent. Integral structure and good design has realized large-capacity current conveyance. Easy installation, stable performance.

  • Product Detail
Customized grounded power switch JNH4 Series



This product is a new earthing switch designed and developed by our company.It has an integral structure,with novel and smart design and even contact.It has realized large-capacity current conveyance.The new contact structure with national patent is adopted,which has the guiding function when the cylindrical contact is inserted. The product also features light operating force and convenient installlation.



Rated Voltage  ( kV)

Thermal Steady Current (KA)

Thermal Steady Time(s)

Dynamic Steady Current ( KA )

Short Circuit Making Current ( KA )

Phase Distance (mm)

12

50

4

125

125

210-275

17.5

50

4

130

130

210-275

24

40

4

100

100

210-275

24

50

4

125

125

275


Environmental conditions

Ambient air temperature

+60℃ to -30℃,daily temperature difference: 30℃.(Actually upon the temperature of insulators)

Relative humidity

<90% (daily mean)

Seismic intensity

No higher than 8

Altitude

No higher than 1000m (if the product is to be used in plateau, please make a note in the order).

Places without fire or explosion hazards, or heavy dust, chemical corrosion or violent vibration.


Operating Interlock Machanism

Production Capacity 


1.Annual Capacity: 30000 earthing switches

2.Over 30 machines,like CNC lathe, CNC milling machine, CNC bending, Automatic welding machine, Punching, Shearing machine etc

3.All kinds of Inspection Equipments:

switch mechanical characteristics tester, rockwell hardness tester, automatic spring tension and compression tester, circuit resistance tester, eddy current conductance tester, multifunctional electrolytic thickness tester, salt spray test and others

Professional research and development, strict inspection, perfect after-sales service.


Patent 



Workshop 


Partner 





Jiangshan Electrical Technology Development Co., Ltd.,Founded in 1994,focus on grounding switch,Isolation switch,Transmission gear R&D and production.Science & Technology Enterprise of Zhejiang Province,13 Patents for Utility Models,2 Patents for Invention and 2 Patents in USA.Accumulated lots of experience in R&D and Quality Control which earned us a good reputation within the market. Professional research and development, strict inspection, perfect after-sales service.


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