The VJT series from VICFUSE is a Class J time-delay, current-limiting fuse designed to provide dependable overcurrent and short-circuit protection across industrial electrical systems and power distribution applications.

Engineered according to UL248-8 requirements, the VJT fuse combines controlled time-delay characteristics with high interrupting capability, allowing temporary inrush currents to pass while maintaining fast fault interruption during overload and short-circuit conditions.

Designed for industrial reliability and system flexibility, the VJT series supports equipment protection while enabling future system expansion and helping improve operational continuity.

With current ratings from 1A to 600A and interrupting capacity up to 200kA AC, the VJT series is suitable for protecting motors, transformers, feeders, branch circuits, and other critical electrical infrastructure.

Key Features

• Class J time-delay current-limiting fuse
• Designed according to UL248-8
• High interrupting capacity up to 200kA AC
• Controlled time-delay performance for inrush current tolerance
• Superior short-circuit protection capability
• Supports future system expansion requirements
• Compact Class J design for industrial applications
• CE, UL, and RoHS compliant
• Reliable protection for demanding electrical environments

Electrical Specifications Voltage Ratings

• 600VAC
• 500VDC

Current Ratings

• 1A to 600A

Interrupting Ratings

• 200kA AC
• 100kA DC

Operating Type

• Time-Delay
• Current-Limiting

The VJT fuse is designed to withstand temporary startup and surge currents while providing reliable interruption during sustained overload and fault events.

Protection Performance Benefits

The time-delay operating characteristic helps reduce nuisance opening in circuits that experience normal inrush conditions while maintaining dependable protection performance.

Protection advantages include:

• Improved motor startup tolerance
• Reduced unnecessary fuse replacement
• Enhanced branch circuit protection
• Reliable transformer protection
• Lower downtime from transient events
• Improved electrical system continuity

The current-limiting design helps reduce let-through energy and supports better protection of downstream equipment.

Typical Applications

The VJT Class J fuse is designed for use in:

• Motor circuits
• Main distribution circuits
• Feeders
• Branch circuits
• Lighting systems
• Heating equipment
• Transformers
• Industrial control panels
• Circuit breaker backup protection
• Load centers
• Industrial power systems
• OEM electrical equipment

Certifications & Compliance

The VJT series complies with recognized international standards and environmental requirements:

• UL248-8
• UL Certified
• CE Certified
• RoHS Compliant

These certifications support integration into industrial equipment intended for global markets.

Industrial Advantages

• Time-delay performance for high inrush applications
• High interrupting rating for improved safety
• Reliable current-limiting protection
• Supports industrial power system reliability
• Suitable for modernization and future capacity expansion
• Optimized for demanding industrial environments