A fuse from Mersen/Ferraz Shawmut is the most essential fuse for both commercial and industrial needs. With time delay fuse speed, 1-4/10A fuse amps, an interrupt rating of 200kA at 600VAC, 20kA at 600VDC, and trs-r series, this fuse is a must-have. The body is made of polyester material. When it comes to product classification, this item can be grouped as RK5. It has a dual element. It is a nonindicating fuse. As far as size goes, it is 13/16" in diameter. The voltage rating is 600vac/dc. Functionally equal to Bussmann FRS-R, Littlefuse FLSR, you'll thoroughly enjoy its use. Standards include: UL, CSA.