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Haivo manufactures premium 15kV outdoor high voltage fuse cutouts, the industry-standard short-circuit protection solution for 10-15kV distribution systems. Designed for economy, ease of operation and unmatched outdoor adaptability, our drop-out fuses are trusted by power utilities, electrical contractors and industrial operators worldwide for reliable protection and switching performance.
All our fuse cutouts are manufactured and 100% tested in strict accordance with the latest international standards: IEC 60282-2:2008, IEEE Std C37.41-2008 and IEEE Std C37.42-2009, ensuring consistent performance even in the most demanding environmental conditions.
Our fuse cutouts are engineered to withstand decades of harsh outdoor exposure. For porcelain insulators, the porcelain body is bonded to hardware fittings using Por-Rok anchoring cement from CGM Inc. (USA), a premium material renowned for rapid solidification, high mechanical strength, low expansion coefficient and exceptional weather resistance.
For polymer insulator options, we use one-piece injection-molded high-temperature vulcanized (HTV) silicone rubber. This advanced material provides excellent tracking and erosion resistance, superior sealing performance, and long-term durability in high-UV, high-humidity and polluted environments.
Unlike traditional multi-vent designs that are prone to water intrusion and line damage, our fuse cutouts feature a unique single vent system. During interruption, exhaust gases are directed downwards and outwards, preventing rainwater from entering the fuse body and protecting upper lines from hot gas damage. This patented design also significantly improves short-circuit interrupting capacity.
All copper components are precision-cast from high-grade bronze or brass for optimal mechanical strength and electrical conductivity. All contact surfaces are silver-plated and feature a convex design that minimizes contact resistance and ensures consistent electrical connection.
High-strength memory copper alloy sheets maintain stable low-resistance contact even after hundreds of fuse drop-out operations. Integrated arc-shortening copper rods further enhance short-circuit interruption performance, reducing arc duration and minimizing equipment damage.
Every ferrous component in our fuse cutouts undergoes hot-dip galvanizing with a zinc coating thickness of over 86μm. This heavy-duty coating provides exceptional corrosion resistance, making our products ideal for coastal areas, industrial zones and regions with high atmospheric pollution.
Loadbreak-type fuse cutouts are equipped with arc chambers manufactured from special reinforced nylon material. This material offers excellent mechanical strength, anti-aging properties and flame retardancy, making it suitable for use in high-altitude, high-UV and coastal environments. When used with a portable loadbreak tool, our fuse cutouts function as reliable overhead line disconnect switches.
Rated voltage(KV) | Rated current(A) | Rated interrupting current(KA) | Lightning impulse withstand voltage to ground (BIL KV) | Minimum power frequency withstand dry voltage to ground (KV) | Minimum creepage distance(mm) |
|---|---|---|---|---|---|
11-15 | 100/200 | 12 | 110 | 42 | 220 |
11-15 | 100/200 | 12 | 125 | 50 | 320 |
24-27 | 100/200 | 12 | 150 | 65 | 470 |
33-38 | 100/200 | 8 | 170 | 70 | 660 |
33-38 | 100/200 | 8 | 170 | 70 | 720 |
33-38 | 100/200 | 8 | 170 | 70 | 900 |
 |  |  |  |  |  |
10-15kV overhead distribution line branch protection
Distribution transformer primary side protection
Capacitor bank overcurrent protection
Overhead line sectionalizing and switching operations
Industrial power distribution systems
Rural electrification projects
Solar and wind power distribution systems
Mining and construction site power systems
To ensure we supply the exact product for your project requirements, please provide the following detailed information when placing your order:
Rated voltage and rated current
Required minimum creepage distance
Insulator material (porcelain or polymer)
Whether an arc-shortening rod is required
Type of mounting bracket needed
Our team of certified electrical engineers is available to provide free technical consultation and help you select the optimal fuse cutout for your specific application.
All Haivo fuse cutouts are designed, manufactured and tested in full compliance with the latest international standards. Our production facilities are certified to ISO 9001:2015 quality management system, ensuring consistent product quality across all batches.
Each fuse cutout undergoes comprehensive testing before shipment, including:
Power frequency withstand voltage test
Lightning impulse withstand voltage test
Mechanical operation test
Contact resistance measurement
Visual and dimensional inspection
All Haivo 15kV outdoor high voltage fuse cutouts come with a 3-year manufacturer warranty against defects in materials and workmanship. We also provide lifetime technical support and fast delivery of spare parts to minimize downtime for your operations.
Expulsion fuse cutouts are designed for fault interruption only, while loadbreak fuse cutouts can safely interrupt load currents using a portable loadbreak tool, allowing them to function as disconnect switches.
Yes. Our fuse cutouts feature hot-dip galvanized steel components with 86μm+ zinc coating and HTV silicone rubber insulators, providing excellent corrosion resistance in salt-laden environments.
We recommend annual visual inspections and more frequent inspections in harsh environments. A full maintenance check should be performed every 3-5 years.
Yes. We can manufacture fuse cutouts with custom creepage distances up to 900mm for 15kV systems, specifically designed for heavily polluted industrial and coastal areas.
All our 15kV outdoor high voltage fuse cutouts are certified to IEC 60282-2:2008, IEEE Std C37.41-2008 and IEEE Std C37.42-2009 standards. Our manufacturing facilities are also ISO 9001:2015 certified.
Standard 15kV fuse cutout models are in stock and can be shipped within 7 days. We also offer custom design services to meet unique project requirements. Contact our engineering team today for a free, no-obligation quote and technical consultation.
