Ferraz Shawmut Amp-Trap 2000 ; A6D Series Time delay fuse operates at a current rating of 20 Amps and voltage rating of 600 VAC/VDC. It has an interrupt rating of 200/300 kilo-Amps at 600 VAC and 100 kilo-Amps at 600 VDC. Fuse comes in fiberglass body construction offers dimensional stability in harsh industrial settings and has solid state SmartSpot indicator. It features time delay for motor start-ups and transformer inrush currents without nuisance opening. It measures 0.8125 Inch x 5 Inch and features current-limiting for low peak let-thru current.Fuse features rejection-style design that prevents replacement errors. It has high-visibility orange label that gives instant recognition quick recognition. It is designed for motor circuits, mains, feeders, branch circuits, transformers, service entrance equipment and general-purpose equipment. Fuse is UL listed and CE/CSA certified. Also known as -Ferraz Shawmut A6D20R Amp-Trap 2000 Class RK1 Time-Delay Fuse 20 Amp 600 Vo