Spark your life with this brand new fuse from Bussmann. With time delay fuse speed, 6-1/4A fuse amps, an interrupt rating of 10kA at 300VAC, and gmf series, this fuse is a must-have. It has a single element. As far as size goes, it is 5/8" in diameter. The voltage rating is 300vac. It is a nonindicating fuse. The body is made of glass material. Standards include: CE, UL 248-14 Guide JDYX, CSA Certification Class 1422-01.