The Mersen ATQR2-1/2 Amp-Trap 2000 Time-Delay Midget Fuse is a reliable and efficient electrical component designed for industrial use. With a voltage rating of 551-600V, this fuse offers protection for electrical equipment and supplies in various business settings. The Mersen brand ensures quality and performance, making this unit a dependable choice for ensuring the safety and functionality of electrical systems. With a unit quantity of 4, this time-delay midget fuse provides peace of mind and reliability for a range of applications.