Amp-Trap 2000 AJT fuses do not offer an indicator but a visual open SmartSpot fuse indicator. Using advanced material technology, this fuse is suitable for all types of loads providing IEC Type 2 no-damage protection for main, branch and distribution circuits. It requires very little mounting space. AJTs have time delay characteristics and are ideal for handling typical motor and transformer inrush currents while providing excellent current limiting capability.