XGN□-12/24 Indoor Air-Insulated Ring Main Unit
Box-type fixed metal-enclosed RMU for 12/24 kV ring networks and terminal distribution — GB 3906 / IEC 298 compliant with full five-prevention interlocking; SF6 maintenance-free load switch inside.
- Compact good-looking cabinets; assembled-row enclosure protection above IP3X
- Modular upper/lower units for easy installation and maintenance; riveted frame guarantees rigidity
- Integrated LV compartment for secondary elements, with extensible instrument room for more protection units
- Pressure-relief duct available; SF6 maintenance-free load switch — economical and reliable
- Simple operation with complete five-prevention interlocking
A cleaner, more reliable approach to MV switching
The HP-ELS series replaces SF₆ with environmentally friendly insulating media while keeping the proven safety and performance utilities expect from gas-insulated switchgear.
Product Overview
XGN□-12/24 is a box-type fixed AC metal-enclosed ring main switchgear — a complete AC high-voltage assembly rated 12 kV, 50 Hz. It mainly serves three-phase AC ring networks, terminal distribution grids and industrial loads for power reception, distribution and protection, and is also suitable for installation in box-type substations.
Standards & Interlocking
It complies with GB 3906 (3.6–40.5 kV AC metal-enclosed switchgear and controlgear) and IEC 298, with a complete five-prevention interlock. Upper and lower units are modular; after cabinet combination the enclosure protection exceeds IP3X, and it uses an SF₆-insulated maintenance-free load switch — economical, reliable and easy to operate.
Technical specifications
Headline ratings at a glance, followed by the full technical data sheet. Exact values are confirmed per project configuration.
| Parameter | Value |
|---|---|
| Rated voltage | 12 kV |
| Rated frequency | 50 Hz |
| Power-frequency withstand (phase/earth/break) | 42 / 48 kV (1 min) |
| Lightning impulse withstand | 75 / 85 kV |
| Enclosure protection (combined) | > IP3X |
| Load switch | SF₆-insulated, maintenance-free |
| Interlocking | Complete five-prevention |
| Altitude | ≤ 1000 m |
| Ambient temperature | -35℃ to +45℃ |
| Seismic capacity | Grade 8 |
| Standards | GB 3906 / IEC 298 / GB/T 11022 |
Reading the model designation
Generated automatically from each product's model code.
Overall dimensions
Cabinet height, width and depth options. Selection depends on cable type and incoming / outgoing configuration.
| Item | Dimensions (mm) | Scope of application |
|---|---|---|
| Height H | 1400 | Single-core cables |
| Height H | 1600 | Single-core cables |
| Height H | 1800 | Three-core cables |
| Width W | 375 / 500 / 750 | Incoming / outgoing |
| Depth D | 918 | Standard |
Need help selecting for your project?
Send us your single-line diagram or requirements — our engineers will provide configuration, full specifications and export documentation.
Request a quote