MAXIMUM PROTECTION IN MINIMAL SPACE
For over 20 years, Hi-Tech current-limiting fuses have protected critical utility infrastructure and communities from electrical failures.
Hi-Tech current-limiting fuses represent decades of engineering excellence focused on one critical mission: protecting utility infrastructure and preventing catastrophic failures. These specialized fuses provide ultra-fast fault clearing that dramatically reduces equipment stress while enhancing safety for utility personnel and the communities they serve. From overhead distribution systems to pad-mounted transformers, Hi-Tech fuses deliver reliable protection where it matters most.
The Hi-Tech product line addresses the unique challenges utilities face in maintaining safe, reliable electrical distribution. Every fuse undergoes rigorous testing to ensure it meets the demanding performance standards required for critical infrastructure protection. The combination of proven technology, innovative design, and consistent manufacturing quality has made Hi-Tech the trusted choice for utilities managing complex distribution networks to protect communities across North America and beyond. As part of ABB's Installation Products division, Hi-Tech continues its legacy of engineering excellence in utility protection.
PROTECTING COMMUNITIES FROM WILDFIRES
Introduced in 2022, the ABB Hi-Tech Valiant™ current-limiting fuse combines 20+ years of proven technology with patented damage sensors to help prevent utility-caused wildfires. Wildfires in North America burn millions of acres annually, causing billions of dollars in damage -- with electrical equipment failures being a leading ignition source. The Hi-Tech Valiant fuse clears faults in less than half a cycle, stopping ignitions before they spark fires.
Its patented damage sensor detects equipment compromise that could lead to fuse failure, while the visual indicating mechanism enables quick identification of operated fuses during inspections. Designed specifically for high fire-risk areas, Valiant protects communities, property, wildlife and critical infrastructure from wildfire threats.
The innovative technology represents a significant advancement in utility safety, addressing one of the most pressing challenges facing electrical utilities in fire-prone regions. By combining ultra-fast fault clearing with intelligent damage detection, Valiant provides utilities with a powerful tool for wildfire prevention and community protection.
WHY HI-TECH? BECAUSE RELIABILITY CAN'T BE COMPROMISED.
<p>For over 20 years, Hi-Tech has delivered industry-leading current-limiting fuses that protect critical utility infrastructure. From overhead distribution to fire mitigation, Hi-Tech fuses provide unmatched performance, safety and value.</p>
Ultra-fast fault clearing
<p>Hi-Tech fuses clear faults in less than one-half cycle, dramatically reducing let-through energy and minimizing stress on equipment while increasing safety for personnel and communities.</p>Lowest current let-through values
<p>Some of the lowest current let-through values in the industry provide superior equipment protection, reducing damage during fault conditions and extending system component life.</p>100% factory tested & sealed
<p>Every Hi-Tech fuse undergoes complete factory testing and is sealed against moisture for long, reliable operating life, helping ensure consistent performance in all environmental conditions.</p>Patented damage sensor technology
<p>The exclusive Hi-Tech damage sensor significantly reduces the risk of fuse failure by detecting undetected damage that could compromise equipment protection - a critical safety feature for utility applications.</p>Rugged construction
<p>Machined-brass end caps provide greater ferrule strength compared to stamped alternatives, resulting in less distortion and more secure fuse attachment for reliable long-term performance.</p>Full-range protection portfolio
<p>From backup fuses (OS and EXT series) to full-range options (FX, EX, SX series) and the innovative Hi-Tech Valiant™ fire mitigation fuse, Hi-Tech offers comprehensive solutions for utility applications.</p>Wildfire mitigation certified
<p>The Hi-Tech Valiant fuse is specifically engineered for fire mitigation in high-risk areas, helping utilities prevent ignitions and protect communities from devastating wildfires.</p>HOW WE HELP
Products
Hi-Tech® Current-Limiting Fuses
ABB's Hi-Tech current-limiting fuses feature machined-brass end caps and damage sensors to provide superior protection and reduce let-through energy in overhead and underground distribution systems, pad-mounted switchgear and transformer applications.
- Products
- Industries
INDUSTRIES WE SUPPORT
From residential construction to commercial and industrial projects, our products support professionals across diverse industries.
Utilities, Power generation, Data centers, Renewable energy
FREQUENTLY ASKED QUESTIONS
Hi-Tech fuses clear faults in less than one-half cycle, dramatically reducing let-through energy and minimizing stress on equipment. This ultra-fast response protects transformers, cables, and other critical infrastructure while increasing safety for personnel and communities.
Introduced in 2022, the Hi-Tech Valiant fuse combines proven technology with patented damage sensors to detect equipment compromise before fuse failure. Its ultra-fast fault clearing stops ignitions before they spark fires, protecting communities and critical infrastructure in high fire-risk areas.
Hi-Tech fuses protect overhead distribution systems, pad-mounted transformers and critical utility infrastructure. They're specifically engineered for high fire-risk areas where electrical equipment failures can trigger catastrophic wildfires, providing reliable protection that utilities trust for community safety.
Yes. Each fuse is 100% factory‑tested and sealed to help ensure long operating life and consistent performance under some of the most demanding conditions.
By reducing fault energy, Hi‑Tech fuses lower mechanical and thermal stress on equipment, helping extend system life and improve operator safety.