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Our 11kV Porcelain Fuse Cutout is an industry-leading expulsion-type protective device, engineered for short-circuit protection and safe switching operations in 10kV to 38kV power distribution networks. As the most widely deployed cutout fuse for overhead line branch circuits and distribution transformers, this solution delivers unrivaled economic value, simplified field operation, and extreme adaptability to harsh outdoor environments. Installed primarily on the primary side of distribution transformers and along overhead distribution lines, it provides reliable overcurrent and short-circuit protection for critical power equipment, alongside stable no-load and on-load switching capabilities. All our porcelain expulsion fuse cutout products are manufactured and fully tested in strict compliance with the latest international standards: IEC 60282-2:2008, IEEE Std C37.41-2008, and IEEE Std C37.42-2009, meeting the rigorous requirements of global power industry clients.
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 |
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The core of our 11kV porcelain fuse cutout is a high-grade porcelain insulator, bonded to metal fittings via USA-sourced (por-rok) ANCHORING cement from CGM INC. This specialized cement offers rapid curing, ultra-high mechanical strength, low expansion coefficient, and exceptional weather resistance, eliminating delamination and insulation degradation in long-term outdoor use. All ferrous components feature hot-dip galvanizing with a zinc coating over 86μm, delivering superior corrosion resistance for coastal and industrial pollution zones.
This cutout fuse adopts an innovative single-vent design, exhausting arc gas downward and outward during fault interruption. This structure prevents rainwater intrusion, avoids upper line damage from free gas, and significantly boosts interrupting capacity. An integrated arc-shortening copper rod further enhances short-circuit handling, ensuring rapid arc extinction during fault events.
All copper cast parts use high-grade bronze/brass, with silver-plated convex contact surfaces to minimize contact resistance and maintain consistent conductivity. High-strength memory copper alloy sheets ensure seamless, reliable lower terminal contact, even after repeated fuse drop-out operations, eliminating long-term contact failure risks.
Ideal for power distribution utilities, transformer manufacturers, industrial power operators, and electrical engineering contractors, our 11kV porcelain fuse cutout serves core scenarios including:
Urban and rural overhead distribution line branch circuit protection
Primary side short-circuit protection for 10-38kV distribution transformers
Capacitor bank and power equipment protection
Outdoor distribution system switching and sectionalizing operations
Industrial parks, mining sites, and agricultural power network protection
We offer full customization for our expulsion fuse cutout, including tailored rated voltage/current, custom creepage distance, optional insulator materials, arc-shortening rod configurations, and mounting bracket types. For commercial and industrial bulk orders, we provide flexible production scheduling, guaranteed lead times, batch quality consistency testing, and full technical documentation, alongside OEM/ODM services to align with your project and brand requirements.
HAIVOL is a professional high-voltage fuse cutout manufacturer with decades of experience serving global power clients. Our 11kV porcelain fuse cutout stands out for full international standard compliance, 100% pre-delivery testing, premium global raw material sourcing, dedicated technical support, and stable production capacity for large-volume bulk orders with on-time delivery.
All our cutout fuse products are manufactured and tested to IEC 60282-2:2008, IEEE Std C37.41-2008, and IEEE Std C37.42-2009 international standards.
Please specify rated voltage/current, minimum creepage distance, insulator material, arc-shortening rod requirement, and mounting bracket type.
We provide a full range from 10kV to 38kV, with 11kV being the most widely used for medium-voltage distribution systems.
Yes, we offer full customization and bulk supply for engineering projects, with flexible minimum order quantities and dedicated project management.
