Xizi Energy’s SF6 ring main unit upper & lower fuse holders for 12kV/24kV RMUs: leak-proof, arc-resistant, interlocked design, compatible with XRNT/XRNM fuses—ideal for reliable MV distribution protection.
1. SF6 Gas Sealing Integrity: Precision-machined interfaces with high-quality sealing gaskets ensure zero SF6 leakage, maintaining insulation performance and operational safety of gas-insulated ring main units (RMU).
2. Arc-Resistant & High-Strength Construction: Crafted from die-cast aluminum alloy (anti-corrosion coating) and flame-retardant epoxy resin, withstanding short-circuit arc impacts and harsh outdoor environments.
3. Dual-Position Interlocking Design: Optimized upper/lower mounting structure integrates with RMU three-position switches for mechanical interlocking, preventing misoperation and ensuring personnel safety.
4. Universal Compatibility: Standardized dimensions fit 10kV/24kV SF6 ring main units and match mainstream fuse models (XRNT, XRNM) for easy retrofitting.
5. Easy Maintenance: Tool-free disassembly design simplifies fuse replacement and internal inspection, reducing downtime for power distribution networks.
| Parameter | 10kV Model | 24kV Model |
|---|---|---|
| Rated Voltage | 12kV | 24kV |
| Rated Current | 630A | 630A |
| Short-Circuit Withstand Current | 20kA/4s | 20kA/4s |
| Applicable Fuse | XRNT1-12/63A~200A | XRNT1-24/63A~200A |
| Sealing Performance | ≤1×10⁻⁶ mbar·l/s (SF6 leakage rate) | ≤1×10⁻⁶ mbar·l/s (SF6 leakage rate) |
| Material | Upper/Lower Base: Die-cast aluminum alloy; Insulation Part: Epoxy resin | Same as 10kV model |
| Protection Grade | IP67 (when installed) | IP67 (when installed) |
1. SF6 Ring Main Units (RMUs): Core accessory for gas-insulated ring main units, enabling safe and reliable fuse installation in 12kV/24kV RMU switchgear.
2. Urban & Rural Power Distribution: Ideal for 10kV/24kV urban power grids, residential communities, and rural power transformation projects, ensuring stable overcurrent/short-circuit protection.
3. Industrial & Commercial Facilities: Suited for industrial substations, factory power systems, shopping malls, and data centers—critical for protecting transformers and electrical equipment.
4.Renewable Energy Integration: Compatible with solar and wind power grid-connected systems, providing safe protection for medium-voltage distribution links of new energy projects.
We offer comprehensive OEM and ODM services tailored to your specific requirements. Should you require customized products, our professional team will provide full support to meet your needs.
