Reduce potential risks with a fuse from Mersen/Ferraz Shawmut. With time delay fuse speed, 17-1/2A fuse amps, an interrupt rating of 200kA at 600VAC, 100kA at 600VDC, and a6d-r series, this fuse is a must-have. As far as size goes, it is 13/16" in diameter. The voltage rating is 600vac/dc. Functionally equal to Bussmann LPS-RK-SPI, Littelfuse LLSRK-ID, you'll thoroughly enjoy its use. It has a dual element. When it comes to product classification, this item can be grouped as RK1. It is an indicating fuse. The body is made of polyester material. Standards include: UL 248-12 File E2137, DC UL 248, CSA C22.2 No. 248.12.