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Gas-Insulated Ring Main Unit
The 40.5 kV ring main unit is SF₆ gas-insulated metal-enclosed switchgear featuring compact structure, high reliability, enhanced safety and maintenance-free operation. Its maximum rated voltage is 40.5 kV, rated current 630 A and rated breaking current 25 kA, widely used in secondary distribution networks.
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Modular & Flexible Design
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Reliable Operation Under High-Altitude Conditions
Product Highlights
Modular & Flexible Design
Modular design with a compact structure, allowing flexible configuration of each cabinet type. It supports side-by-side and top cabinet expansion, with expandable interfaces on both left and right sides.
Reliable Operation Under High-Altitude Conditions
Meets installation and operation requirements in high-altitude areas: standard applicable altitude up to 2000 m, and up to 4000 m for special environments.
