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Our 11kV Porcelain Breaking Fault Current Fuse Cutout is a high-performance outdoor short-circuit protection switch, specially designed for 10kV-38kV distribution lines and distribution transformers. As an economical, easy-to-operate expulsion fuse cutout with strong outdoor adaptability, it is widely used for line and equipment protection, as well as load switching and sectionalizing operations in power distribution systems. This 11kV porcelain drop-out fuse cutout is manufactured with premium porcelain bodies, heavy-duty hot-dip galvanized fittings and high-conductivity copper components, delivering reliable fault current interruption and stable long-term operation in harsh outdoor environments. It is fully compliant with the latest IEC and IEEE international standards, ensuring compatibility with global power distribution infrastructure requirements.
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 single-vent design enables downward and outward exhaust during fault interruption, preventing rainwater intrusion and improving breaking capacity. The arc-shortening copper rod further enhances short-circuit fault interruption performance, while the reinforced nylon arc chamber for loadbreak models delivers reliable load switching capability, suitable for high-altitude, coastal and high-ultraviolet environments.
The porcelain body is bonded to fittings with US CGM INC por-rok anchoring cement, featuring rapid solidification, high mechanical strength and superior weather resistance. All ferrous parts are hot-dip galvanized with a zinc layer ≥86μm, providing exceptional corrosion resistance for long-term outdoor use.
All copper components are made of high-quality bronze/brass, with silver-plated convex contact surfaces to reduce contact resistance and ensure stable conductivity. High-strength memory copper alloy sheets maintain consistent contact performance, even during fuse element drop-out operations.
All high voltage fault current fuse cutouts are manufactured and tested in strict accordance with IEC 60282-2:2008, IEEE Std C37.41-2008 and IEEE Std C37.42-2009, meeting global power grid operation specifications.
This 11kV porcelain fuse cutout is tailored for power utility providers, transformer manufacturers, electrical engineering contractors, rural power grid upgrade contractors and industrial power system integrators, with core applications including:
11kV-38kV overhead distribution line branch protection
Distribution transformer primary side protection
Capacitor bank circuit protection
Outdoor power distribution line sectionalizing
Industrial and rural power grid infrastructure upgrades
We offer flexible customization solutions, including adjustable rated voltage/current, custom creepage distance, optional porcelain or polymer insulators, arc-shortening rod configuration and mounting bracket types to match your project requirements. We maintain sufficient stock for standard models to support bulk orders, with fast global shipping and dedicated order management for bulk purchasers. OEM services are available to align with your brand and technical specifications.
HAIVOL is a professional manufacturer of power distribution protection components, with years of experience serving power system operators and engineering partners worldwide. All our porcelain breaking fault current fuse cutouts undergo strict full-performance testing before delivery, ensuring consistent and reliable quality. We offer competitive factory-direct pricing, stable bulk supply capacity, professional technical support and responsive after-sales service, making us your trusted long-term partner for power distribution protection solutions.
Our fuse cutouts are fully manufactured and tested in accordance with IEC 60282-2:2008, IEEE Std C37.41-2008 and IEEE Std C37.42-2009, meeting global power industry requirements.
The 11kV-15kV model has a rated interrupting current of 12kA, delivering reliable short-circuit protection for distribution lines and equipment.
Yes, we provide full customization for creepage distance, mounting bracket type and other specifications to meet your project’s unique needs.
We offer both high-quality porcelain insulators and polymer silicone rubber insulators to adapt to different environmental conditions.
