This is a brand new, open box containing 6 MERSEN TRS30RID 30A 30 Amp 600V Tri-Onic Class RK5 Fuses. These high-quality electrical fuses are manufactured in the USA by Mersen and are suitable for both AC and DC current types. With a maximum amperage of 30A and voltage rating of 551-600V, these fuses are perfect for use in various electrical equipment and supplies. The unit quantity is 6.