Histe Dropout Fuse provides high-performance overcurrent and short-circuit protection in medium-voltage power systems. Its robust construction, designed for outdoor use, ensures quick fault interruption and an automatic drop-out mechanism for easy isolation. Ideal for transformers, feeders, and distribution lines, Histe Dropout Fuse complies with IEC & ANSI standards for safety and durability. By choosing Histe, you are partnering with one of the industry's most reliable dropout fuse suppliers, ensuring both performance and dependable support. With a commitment to excellence that distinguishes us from other dropout fuse manufacturers, Histe offers comprehensive engineering support to ensure our products integrate perfectly into your specific power infrastructure.
Faulty dropout fuses trigger cascading grid failures due to:
Delayed interruption – Slow-melting alloys prolong short circuits, damaging transformers
Contamination welding – Moisture/dust prevents proper disconnection, escalating faults
Incorrect rating – Mismatched capacity (e.g., 10kA fuse on 16kA line) causes explosive rupture
Utilities face $18k/hour outage costs from fuse-related failures. Our dropout fuses solve this with tungsten contacts (0.3ms break time) and hermetic sealing (IP66).
Engineered to prevent 90% of fuse-induced outages, Histe dropout fuses feature:
Tungsten-Tipped Contacts – Achieve 0.2ms arc extinction (vs standard 3ms) to stop fault currents up to 20kA
Dual-Action Spring Mechanism – Ensures positive drop-out even with 45° pole tilt
Nano-Ceramic Housing – Resists 150kV/cm dielectric stress and -40°C~105°C thermal cycling
Proven to reduce outage durations by 78% in EPRI field tests, the Histe dropout fuse delivers reliable performance with a 20-year corrosion-free operation guarantee.
