Mersen AJT100 Fuse Amp-Trap 2000 600V 100A Class J Time-Delay with SmartSpot Indicator

Description

Features

• The AJT100 is a premium 100-Amp, 600V Class J fuse that offers industry-leading protection in a space-saving footprint. Its unique physical dimensions prevent the accidental installation of lower-rated Class RK fuses, ensuring your high-capacity motor starters and industrial feeders are always protected by a high-performance, current-limiting device.
• Engineered with advanced time-delay properties, the AJT100 is designed to "ride through" the massive initial inrush currents of large motors and transformers. It provides a minimum of 10 seconds of delay at 500% of its rating, effectively eliminating nuisance tripping during equipment startup while maintaining instantaneous protection against catastrophic short circuits.
• The AJT100 is one of the most current-limiting fuses available, reacting in less than 1/4 of a cycle during a fault. By drastically reducing the peak "let-through" energy ($I^2t$), it significantly lowers the risk of Arc Flash hazards and shields downstream equipment like Variable Frequency Drives (VFDs) from permanent thermal damage.
• With a massive 200,000 Amp RMS interrupting rating, this fuse is suitable for use in locations with extremely high available fault current. It allows you to achieve a high Short Circuit Current Rating (SCCR) for your entire control panel, meeting the most stringent industrial safety codes and inspection requirements.
• Constructed with a high-strength fiberglass body, the AJT100 remains dimensionally stable in high-heat industrial environments. This model features Mersen s SmartSpot visual indicator, allowing maintenance teams to identify a blown fuse at a glance without the need for manual meter testing, which dramatically reduces troubleshooting time.

Documentation & Downloads

Specifications