Product Overview
The fuse cutouts is a core protection device for high voltage distribution systems. It is suitable for three-phase 50Hz outdoor distribution lines ranging from 6kV to 35kV. Composed of a porcelain insulator, fuse tube, contacts, and operating mechanism, its main functions are short-circuit protection, overload protection, and power isolation. It is widely used in substations, distribution lines, transformers, and front-end high voltage equipment.
The product is primarily outdoor type, made of high-quality porcelain insulators and arc-resistant fuse elements. It complies with standards such as GB/T 15166.3-2017 and holds CCC certification. Features include excellent arc-extinguishing performance and convenient operation. Ratings and protection levels can be customized to suit various outdoor high voltage applications.
Operating Conditions
1. Ambient Temperature: -40°C to +45°C (24h average ≤ +45°C); excellent resistance to high and low temperatures.
2. Altitude: ≤ 1000m (customizable up to 3000m with optimized insulation performance).
3. Relative Humidity: ≤ 95% at +25°C; anti-pollution sealed design suitable for humid and foggy environments.
4. Installation Site: Open outdoor areas, free from severe vibration and corrosive gases, away from flammable and explosive materials.
5. Protection Rating: IP54 to IP65 – rainproof, snowproof, and dustproof; Pollution degree ≤ Class IV (anti-pollution type customizable).
6. Installation Requirements: Vertically mounted on a bracket; spacing ≥ 30cm; secure wiring and reliable grounding; sufficient space for operation.
Technical Parameters
Parameter | Unit | Value |
|---|---|---|
Rated Voltage | kV | 6, 10, 35 (standard), customizable for outdoor high voltage lines |
Rated Frequency | Hz | 50 |
Rated Current | A | 10, 20, 30, 50, 100 (full series, customizable) |
Rated Breaking Current | kA | 5, 10, 12.5 (standard); reliable arc-extinguishing performance |
Fuse Characteristics | — | Complies with GB/T 15166.3; fast blowout, rapid protection response |
Insulation Level | kV | Lightning impulse withstand ≥ 95kV; power frequency withstand ≥ 42kV |
Structure Type | — | Outdoor drop-out type, manual operation, automatic drop after blowing |
Operation Mode | — | Manual operation with dedicated operating rod; convenient to use |
Product Features
1. High Voltage Protection & Fast Response: Suitable for 6kV–35kV lines; fast blowout during short circuits or overloads to protect equipment.
2. Excellent Arc Extinguishing & Safe Reliable: High-quality arc-resistant fuse and porcelain insulator for superior arc extinction; no risk of explosion or leakage.
3. Easy Operation & Simple Maintenance: Manual operation with automatic drop-out after blowing; fuse elements can be replaced individually; low maintenance cost.
4. Strong Environmental Resistance & Wide Adaptability: High outdoor protection; resistant to extreme temperatures, pollution, and moisture; suitable for harsh outdoor conditions.
5. Robust Structure & Long Service Life: High-quality porcelain and metal materials resist aging and impact; service life ≥ 10 years.
6. Isolation Function & Practicality: In addition to protection, it serves as a power isolation device for convenient maintenance.
7. Flexible Customization & Strong Adaptability: Customizable rated current and breaking current to meet different high voltage line requirements.
Our Advantages
1. Strong customization capabilities – ratings and protection levels tailored to various outdoor high voltage applications.
2. Standardized production with full quality control – each unit comes with a factory test report for consistent and reliable performance.
3. Full certifications – compliant with national standards and material requirements, meeting high voltage distribution project acceptance criteria.
4. Reliable delivery – supports urgent orders, accompanied by installation guidance for quick commissioning.
5. Comprehensive after-sales service – full life-cycle support, including fuse replacement and troubleshooting guidance with rapid response.
Ordering Guide
Please provide the following information to ensure the product perfectly matches your needs:
1. Rated voltage, rated current, and rated breaking current – to match the corresponding high voltage line.
2. Installation environment and pollution degree – whether an anti-pollution or high-altitude type is required.
3. Product model – whether special dimensions or operating methods are needed.
4. Mounting bracket specifications – whether mounting accessories or a dedicated operating rod are required.
5. Application scenario – whether special features like enhanced arc resistance or anti-pollution performance are required.
