This SF6 fully insulated gas load break switch is the core component of medium voltage ring main unit (RMU), used for reliable power distribution in substations, renewable energy projects and industrial grids.

This 3-position switch integrates close, open and earthing functions into one compact unit, removing the requirement of separate earthing switch.

Key Features:

1.  3-position operation: On / Off / Earth
2.  Fully sealed SF6 gas chamber for arc extinction
3.  Stable operation under high humidity, dust and high altitude with minimal maintenance
4.  Compact design to save substation space
5.  Optional SF6 gas density monitoring gauge
6.  Mechanical interlock prevents misoperation for higher safety

Technical Specifications: 

Rated Voltage:12kV / 24kV (Customizable)
Rated Current:630A / 1250A (Customizable)
Rated Short-Time Withstand Current:20kA / 25kA / 31.5kA
Insulation Medium: SF6 Gas
Operation Type: Manual or Motorized (Optional)
Enclosure Material: Epoxy Resin Casting
SF6 Leakage Rate:＜0.5%/Year
Operating Temperature: -40℃ ~ +55℃
Installation: Indoor, RMU integrated

Application Scenarios: 

• Medium Voltage Ring Main Unit (RMU), urban & rural power grid
• Box-type compact substations
• Solar & wind power plant, energy storage projects
• Industrial plant and railway power supply

Important note: Compatibility needs to be confirmed according to cabinet model, installation condition and project parameters before order.

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