Hi-Tech® Current-Limiting Fuses Standard

Fast, reliable current‑limiting protection for medium voltage distribution.

Safeguard essential electrical assets

ABB's Hi-Tech current-limiting fuses deliver reliable fault-clearing in less than half a cycle, reducing equipment stress and improving safety. With some of the industry's lowest let-through values and superior protection in a compact, cost-efficient form, Hi-Tech fuses minimize equipment damage. A patented damage sensor reduces fuse failure risk, while 100% factory testing helps ensure a long, reliable operating life in demanding conditions.

Key Features and Benefits

<p>Manufactured in Hickory, North Carolina, USA, ABB's Hi-Tech current-limiting fuses protect critical medium-voltage distribution equipment with rugged machined-brass end caps that minimize distortion and provide secure fuse attachment.</p>

Safe

<p>Interrupt high fault currents in less than half a cycle, reducing arc flash energy, heat and magnetic force. Helping prevent catastrophic equipment failure and reduce potential injuries.</p>

Reliable

<p>Damage sensor significantly reduces the risk of fuse failure.</p>

Cost-effective

<p>100% factory tested and sealed for a long and reliable operating life.</p>

Durable

<p>Rugged machined-brass end caps used for greater ferrule strength, resulting in less distortion and a more secure fuse attachment.</p>

Industries We Support

From residential construction to commercial and industrial projects, our products support professionals across diverse industries.

Utilities, Infrastructure, Power distribution

Challenges We Solve

Our products are designed to help professionals solve installation, safety and performance challenges in demanding applications.

Wildfire-prone locations, Equipment failure, System protection, Fire and explosion hazards, Worker safety

Product Selection Tool

Hi-Tech® FACT Configurator

Hi-Tech FACT offers a simple, real-time solution to optimize backup current-limiting fuse selection based on the provided transformer configuration. FACT provides multiple types of expulsion fuses common in the industry, enabling users to select a specific rating as needed when defined by industry or utility specifications.

Our Electrical Solutions in Action: Videos

Hi‑Tech: Advanced Fuse Protection for Modern Power Systems

For over 20 years, Hi-Tech current-limiting fuses have protected critical utility infrastructure. From overhead distribution to fire mitigation, ABB's Hi-Tech fuses provide unmatched performance, safety and value.