Xizi Energy’s SF₆ fully insulated gas load break switch is a core component for 10kV/24kV medium voltage (MV) ring main units (RMUs), designed for reliable power distribution in substations, renewable energy projects, and industrial grids.
This 3-position SF₆ switch integrates circuit making/breaking, isolation, and grounding in a sealed SF₆ gas chamber, delivering exceptional safety, reliability, and environmental adaptability for modern power systems.
This SF6 fully insulated gas load break switch is used for medium voltage power distribution. It has tight sealing, small size and long service life for substation and power grid use. It fits 10kV and 24kV medium voltage power systems. It uses fully sealed structure to keep stable work in bad weather, with low daily maintenance.
Integrates three critical functions—load switching, isolation, and safety grounding—in a single compact unit, eliminating the need for separate grounding switches and simplifying RMU design.
The entire active part is enclosed in an epoxy resin-sealed SF₆ gas chamber.It uses SF₆’s good insulation and arc-quenching properties.
It can operate stably in harsh environments (high humidity, dust, high altitude, condensation) with little maintenance.
The fully enclosed, gas-insulated design of our SF6-insulated load break switch eliminates the risk of contact oxidation and external pollution, ensuring consistent performance in both indoor and outdoor installations.
Engineered for seamless replacement and retrofitting of Schneider, ABB, Siemens and other international brand RMU switch units, making it ideal for grid modernization and old equipment upgrades.
Integrated modular structure reduces the overall size of the ring main unit, saving valuable substation space while maintaining full electrical performance.
Equipped with a temperature-compensated SF₆ gas density gauge for real-time pressure monitoring, with clear color-coded zones (green = normal, red = alarm) to prevent gas leakage risks.
Mechanical interlocking between the 3 positions prevents incorrect operation, ensuring maximum safety for maintenance personnel and grid reliability.
| Parameter | Specification |
|---|---|
| Rated Voltage | 12kV / 24kV (Customizable) |
| Rated Current | 630A / 1250A (Customizable) |
| Rated Short-Time Withstand Current | 20kA / 25kA / 31.5kA |
| Rated Peak Withstand Current | 50kA / 63kA / 80kA |
| Insulation Medium | SF₆ Gas (0.4bar / 400mbar Filling Pressure) |
| Operation Type | Manual / Motorized (Optional) |
| Enclosure Material | Epoxy Resin Casting |
| Sealing Performance | SF₆ Leakage Rate < 0.5%/Year |
| Operating Temperature | -40℃ ~ +55℃ |
| Installation Type | Indoor / RMU Integrated |
Our SF6 fully insulated gas load break switch has stable performance and low maintenance cost. It can be perfectly matched with ring main units (RMUs) and box-type substations, meeting the needs of modern power distribution.
You can check more power equipment in our switchgear category to find suitable high voltage products.
