Spark your life with this brand new fuse from Bussmann. With fast acting fuse speed, 450A fuse amps, an interrupt rating of 200kA at 300VAC, 20kA at 160VDC, and jjn series, this fuse is a must-have. As far as size goes, it is 1-1/4" in diameter. It has a single element. The body is made of melamine material. The voltage rating is 300vac/160vdc. It is a nonindicating fuse. Functionally equal to Edison TJN, Bussman JJN, Mersen/Ferraz Shawmut A3T, you'll thoroughly enjoy its use. When it comes to product classification, this item can be grouped as T. Standards include: CE/UL-248-15 Guide JDDZ/CSA Class 1422-02.