Outdoor High‑Voltage Drop‑Out Fuse Cutout for 11 kV–500 kV Lines

Our Drop‑Out Fuse Cutout is a reliable line protection device combining a fault‑clearing fuse tube with a porcelain insulator body. Designed for overhead distribution and transmission networks, it safely isolates faulted sections by “dropping out” the fuse element under over‑current conditions. The robust porcelain housing provides mechanical strength and weather resistance, while the modular fuse tube allows rapid replacement after operation.

Description

Safe Isolation: Fuse tube disconnects automatically under overload or short‑circuit, visibly indicating operation and ensuring downstream protection.
Durable Construction: High‑strength porcelain insulator rated for operating voltages from 11 kV up to 500 kV; UV‑stable and pollution‑resistant surface.
Standardized Fuse Tubes: Compatible with 16 × 185 mm, 22 × 220 mm, and 30 × 250 mm fuse tubes; metal end‑caps for secure electrical and mechanical connection.
Easy Maintenance: “Swing‑down” hinge design allows safe fuse replacement from ground level when used with a hot‑stick, minimizing outage time.

Usage Scenarios

Overhead Distribution Networks: Sectionalizing and fault protection on 11 kV–33 kV feeders in urban and rural areas.
Medium‑Voltage Tie‑Points: Backup isolation on 66 kV lines in industrial parks and utility substations.
Renewable Energy Farms: Local fault clearing on 11 kV collection circuits in wind and solar installations.
Emergency Restoration Kits: Portable cutout assemblies for rapid field replacement after storm damage in coastal and forested regions.
Railway Electrification: Fault protection on 25 kV AC catenary feeder lines for rapid service restoration.