Solid Insulated Switchgear (SIS)

3.3-12 kV


Product parameters:

  • Solid insulation ring main unit
  • Indoor medium voltage distribution switchgear
  • Rated voltage: 3.3kV, 6kV, 10kV, 11kV, 12.5kV, 13.8kV
  • Current up to: 1250A
  • Floor standing
  • Standard: IEC, ANSI, GB
  • UN-SGN12


This medium voltage solid insulation RMU used in 3.3kV, 6kV, 10kV, 11kV, 12.5kV and13.8kV power system, as control distribution unit.

This type of Solid insulated RMU is compact structure, close insulation, long life, maintenance-free, small space, complete various schemes, strong expansibility, safety and environmental protection, not affected by the environment, etc. It can be widely used in industrial, civil ring network and terminal power supply network.It is especially suitable for small secondary power distribution station, open and close station, industrial and mining enterprises, airport, railway, expressway, subway, business district, living area, wind power, photoelectric and other fields.

All UNISUN transformers are in conformity with IEC standards, Transformers in conformity with specific country standards can also be supplied. (IEEE, GB)

Waiting for your enquiry!

Why Buy From Us

Professional Quality Guarantee
Easy and Affordable Payments
Best Product Guarantee

Our Production

The products are designed in strict accordance with IEC or ANSI standards, and the manufacturing steps meet the technological requirements 

Wiring design

Standardized circuit design, high purity copper bar is used for primary circuit, and the design meets the current requirements of the project. Standard copper wire is available for the secondary circuit, and the circuit design is optimized according to the requirements of the project.

Production testing

Comprehensive production inspection, in accordance with the premise of electrical performance, to ensure that each electrical component can working efficiently.  

Scroll to Top

Contact Us By Wechat Please Scan Following QR Code

Talk To Us & We’ll Talk To You!

become your business partner
of electric

Talk To Us & We’ll Talk To You!

Searching info from website