AJT250 | Mersen/Ferraz Class J Time-delay Fuse, 250A 600VAC

The AJT250 fuse from Mersen/Ferraz is part of the Amp-Trap 2000® series, designed to deliver reliable protection for main, feeder, and branch circuits. With its time-delay characteristic, this fuse is ideal for handling motor and transformer inrush currents while maintaining superior current-limiting performance. The AJT250 requires only half the mounting space compared to traditional Class RK fuses, making it a space-saving and efficient choice.

Equipped with the innovative SmartSpot® visual open-fuse indicator, the AJT250 allows for quick and easy fuse status checks. Built with advanced material technology, this Class J time-delay fuse ensures IEC Type 2 No Damage protection, making it suitable for industrial and commercial applications where durability, safety, and performance are critical.

Key Features

• Rated at 250A, 600VAC / 500VDC
• Time-delay fuse – ideal for motor and transformer inrush currents
• SmartSpot® indicator for quick fuse status identification
• Compact design saves up to 50% mounting space
• Provides IEC Type 2 No Damage protection
• Clip or bolted mounting for versatile installation
• High breaking capacity up to 200kA

Specifications