 |
Our 15kV Ceramic High Voltage Drop Out Fuse Cutout is the industry-standard short-circuit protection switch for 10-38kV distribution line branches and distribution transformers. Engineered for cost-effectiveness, straightforward operation and exceptional outdoor adaptability, it delivers reliable protection for transformers, capacitor banks and other critical distribution equipment. When paired with a portable loadbreak tool, it also functions as an overhead line disconnect switch for safe line sectionalizing. All units are manufactured and tested in strict accordance with the latest international standards to ensure consistent performance in demanding environments.
Our porcelain insulators utilize Por-Rok ANCHORING cement manufactured by CGM INC, USA, for permanent bonding between the porcelain body and hardware fittings. This premium cement offers rapid solidification, high mechanical strength, low expansion coefficient and unmatched weather resistance. All ferrous components undergo hot dip galvanizing with a minimum zinc coating thickness of 86μm, providing excellent corrosion protection in coastal, industrial and high-pollution areas. This robust construction reduces maintenance frequency and extends service life up to 30 years, lowering total ownership costs for utility and industrial customers.
We employ an innovative single vent design that exhausts arc gases downwards and outwards during fault interruption. This unique configuration prevents rainwater intrusion into the fuse body and protects upper line components from hot arc gases. Combined with an integrated arc-shortening copper rod, this design delivers a reliable 12kA rated interrupting capacity for 11-15kV systems, ensuring fast and safe fault clearance to minimize downtime.
All copper casting parts are fabricated from high-grade bronze or brass, offering excellent mechanical strength and superior electrical conductivity. Every contact surface is precision silver-plated and features a convex design that reduces contact resistance and ensures consistent electrical connection. High-strength memory copper alloy sheets maintain stable contact pressure even after repeated fuse operations, preventing overheating and power loss. This design minimizes energy waste and reduces long-term operating costs for commercial and industrial power systems.
Loadbreak type fuse cutouts are equipped with arc chambers constructed from special reinforced nylon material. This advanced material provides exceptional mechanical strength, UV resistance, anti-aging properties and flame retardancy. These units are specifically engineered for use in high ultraviolet areas, high altitude regions up to 3000m, coastal salt spray environments and industrial zones with heavy pollution, ensuring reliable performance where standard products may fail.
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 |
 |  |  |  |  |  |
Primary side short-circuit protection for distribution transformers
Overcurrent and short-circuit protection for 10-38kV overhead distribution line branches
Capacitor bank protection in power distribution systems
Line sectionalizing device for isolating faulty sections
Overhead line disconnect switch when used with a portable loadbreak tool
Ideal for utility power grids, commercial facilities, industrial plants, mining operations and renewable energy installations
Suitable for high altitude, high ultraviolet, coastal and industrial pollution environments
All our expulsion fuse cutouts are manufactured and tested in strict accordance with the latest international standards:
IEC 60282-2:2008 High-voltage fuses - Part 2: Expulsion fuses and their fuse links
IEEE Std C37.41-2008 Standard for High-Voltage Fuses, Distribution Enclosed Single-Pole Fuses, Fuse Disconnecting Switches, and Fuse Links
IEEE Std C37.42-2009 Standard for High-Voltage Expulsion Fuses and Fuse Disconnecting Switches
Every unit undergoes rigorous quality control testing including power frequency withstand voltage tests, lightning impulse tests, temperature rise tests and interrupting capacity tests to ensure compliance with these standards.
To ensure we provide you with the exact product you need, please include the following detailed information when placing your order:
Rated voltage and rated current requirements
Required minimum creepage distance for your application
Preferred insulator material (ceramic or polymer)
Whether an arc-shortening rod should be fitted to the fuse cutout
Specific type of mounting bracket required
Our technical team is available to assist you in selecting the most appropriate configuration for your specific power distribution needs.
All our fuse cutouts are manufactured and tested according to IEC 60282-2:2008, IEEE Std C37.41-2008 and IEEE Std C37.42-2009 international standards.
The 11-15kV ceramic high voltage drop out fuse cutout has a rated interrupting capacity of 12kA, providing reliable protection against short-circuit faults.
Yes, all ferrous parts are hot dip galvanized with a zinc coating exceeding 86μm, providing excellent corrosion resistance in salt spray and coastal environments.
Ceramic insulators use Por-Rok ANCHORING cement from CGM INC, USA, for superior mechanical strength and long-term durability. Polymer insulators feature high-temperature vulcanized silicone rubber housings with one-piece injection molding, offering excellent tracking and erosion resistance.
Yes, our loadbreak type fuse cutouts are specifically designed for safe load breaking operations when used with a compatible portable loadbreak tool.
