Mersen AJT175 Amp-Trap 2000 600V 175A Time-Delay Class J Fuse with SmartSpot Indicator

Description

Features

• Engineered with a deliberate time-delay characteristic, the AJT175 handles high inrush currents and temporary surges without nuisance tripping. This ensures that heavy-duty motors and transformers stay online during startup while still providing lightning-fast response to dangerous short circuits.
• Featuring Mersen s patented SmartSpot technology, this fuse provides a highly visible indicator that turns dark if the fuse has opened. This allows maintenance electricians to identify the exact problem circuit at a glance from a distance, drastically reducing troubleshooting time and minimizing expensive facility downtime.
• The AJT175 is a "Current-Limiting" device, meaning it interrupts fault currents before they reach their full peak magnitude. By significantly reducing the I^2t let-thru energy, it prevents catastrophic damage to sensitive components like contactors and circuit breakers, often allowing for lower-cost "Type 2" coordination.
• Despite its compact Class J dimensions which save valuable panel space, this fuse boasts a massive 200kA Interrupting Rating (AIC). This provides a high level of safety and reliability, ensuring the fuse can safely clear major faults even in high-capacity industrial service entrances.

Documentation & Downloads

Specifications