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The 12kV Drop out Fuse Cutout is a widely used protective switch for 10–38kV overhead lines and distribution transformers. When a fault occurs, the fuse melts and the fuse tube drops automatically, forming an obvious disconnection point for easy fault location. It features easy operation, strong outdoor adaptability, and economic efficiency, supporting both protection and simple switching operations, making it essential for overhead distribution networks.
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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Obvious Fault Indication: Fuse tube drops automatically during faults, providing visible break points to speed up maintenance.
Excellent Sealing & Insulation: One piece molded polymer insulators or cement poured porcelain insulators ensure good sealing and anti tracking performance.
Smooth Contact Restoration: High strength memory copper alloy sheets ensure reliable recontact after fuse replacement, no jamming.
Stable Exhaust Structure: Single vent downward exhaust avoids hot gas damage to upper lines and enhances interrupting performance.
Wide Temperature Adaptation: Works stably in extreme outdoor temperatures, resisting UV, humidity, and pollution.
Suitable for overhead distribution branch lines, urban and rural power grids, industrial parks, small and medium sized transformer stations, and new energy supporting lines. It protects transformers, cable branches, and distribution equipment, and undertakes line segmentation and isolation functions.
For enterprise clients, we provide customized creepage distances, fuse ratings, insulator types, and mounting structures. Bulk orders support OEM/ODM, full process quality control, and professional technical documentation. We also offer on site installation guidance and troubleshooting support.
HAIVOL focuses on outdoor high voltage protective appliances, with products meeting international standards and passing rigorous type tests. Our 12kV Drop out Fuse Cutout features stable performance, easy operation, and long service life. Relying on mature supply chains and responsive services, we help clients reduce operation and maintenance costs and improve grid reliability.
When overload or short circuit current melts the fuse, the release mechanism activates, making the fuse tube drop to form a visible break.
With a dedicated load break tool, it can perform safe load switching operations similar to overhead disconnect switches.
Confirm rated voltage, current, required creepage distance, insulator material, and installation bracket type before ordering.
