Introduction to RN1-10 High-Voltage Current Limiting Fuse
The RN1-10 High-Voltage Current Limiting Fuse is a critical component in electrical systems, designed to protect circuits from overcurrents and short circuits. Engineered for reliability and precision, this fuse ensures safe operation in high-voltage environments up to 35kV. Its advanced current-limiting technology minimizes damage to equipment, making it indispensable for power distribution networks, industrial plants, and substations.
Key Features & Benefits
- High Breaking Capacity: Interrupts fault currents up to 40kA (effective value).
- Versatile Voltage Ratings: Compatible with 3kV, 6kV, 10kV, and 35kV systems.
- Robust Construction: Sealed porcelain tube filled with quartz sand for arc suppression.
- Precision Protection: Tailored for specific current ratings (20A to 400A).
- Easy Installation: Standardized dimensions for seamless integration.
Technical Specifications
Table 1: Electrical Performance Parameters
| Rated Voltage (kV) | Rated Current (A) | Max Breaking Current (kA, eff.) | Min Breaking Current (Multiple of Rated Current) | Three-Phase Max Cut-Off Capacity (MVA) |
|---|---|---|---|---|
| 3 | 20–400 | 40 | 1.3 | 8–15.7 |
| 6 | 20–200 | 1.3 | 1.3 | 8.5–17 |
| 10 | 20–200 | 1.3 | 1.3 | 10–21 |
| 35 | 7.5–40 | 1.3 | 1.3 | 10–27 |
Table 2: Structural Components
| Component | Material/Function |
|---|---|
| Fuse Pipe | Porcelain tube housing fuse wire and quartz sand for arc quenching. |
| Fuse Wire | Precision-calibrated for specific current ratings (rolled or suspended design). |
| Quartz Sand | Enhances arc extinction and thermal stability. |
| Indicator System | Spring-loaded mechanism with visual indicator for fault detection. |
Note:
- For ≤7.5A @35kV, fuse wire is rolled on a porcelain core (Chart 2a).
- For >7.5A, fuse wire is suspended within the porcelain tube (Chart 3).
Dimensions & Mounting
Table 3: RN1-10 Series Dimensions (mm)
| Product Type | Rated Voltage (kV) | Fuse Current (A) | A | a | L | H1 | H | b |
|---|---|---|---|---|---|---|---|---|
| RN1-6/2 | 6 | 2 | 310 | 500 | 550 | 125 | 235 | 108 |
| RN1-10/20 | 10 | 20 | 410 | 600 | 650 | – | – | – |
| RN1-3/200 | 3 | 200 | 270 | 400 | 450 | 350 | – | 108 |
| RN1-10/200 | 10 | 200 | 460 | 600 | 650 | – | – | 108 |
(Full dimensional data available upon request)
Applications
The RN1-10 fuse is ideal for:
- Power Transformers: Overcurrent protection in substations.
- Motor Circuits: Safeguarding industrial motors from short circuits.
- HV Distribution Lines: Ensuring grid reliability.
- Renewable Energy Systems: Integration into solar/wind farms.
Why Choose RN1-10?
- Superior Safety: Quartz sand filling ensures rapid arc suppression.
- Customizable Ratings: Wide range of current/voltage configurations.
- Durability: Porcelain construction resists thermal and mechanical stress.
- Compliance: Meets IEC/ANSI standards for high-voltage protection.
Maintenance & Installation Tips
- Inspection: Regularly check the indicator for fault alerts.
- Replacement: Use identical-rated fuses to maintain system integrity.
- Mounting: Follow dimensional charts (Tables 2-3) for precise alignment.
Conclusion
The RN1-10 High-Voltage Current Limiting Fuse combines cutting-edge engineering with robust materials to deliver unmatched protection for high-voltage systems. Its adaptability across voltages (3kV–35kV) and currents (7.5A–400A) makes it a universal solution for modern electrical infrastructure.
Optimize your system’s reliability today—contact us for pricing and technical support!