The Lot of 3 Ferraz Shawmut AJT3 Amp-Trap 2000 Time-Delay Fuses are orange cartridge-type high rupturing capacity (HRC) fuses suitable for interior use. With a current rating of 1-15 A and a voltage range of 551-600 V, these fuses are designed for AC current and have a slow-blow tripping characteristic. Made of fiberglass/glass-reinforced plastic (GRP), these fuses are current-limiting and offer a Type A tripping characteristic, making them ideal for electrical equipment and industrial applications.