'These fuse from Mersen/Ferraz Shawmut can help protect your equipment and home whenever an overload current occurs. With time delay fuse speed, 20A fuse amps, an interrupt rating of 200kA at 600VAC, 100kA at 600VDC, and a6d-r series, this fuse is a must-have. It is an indicating fuse. The voltage rating is 600vac/dc. As far as size goes, it is 13/16\ in diameter. When it comes to product classification'