This lot of 7 Bussmann NOS-6 fuses is perfect for anyone in need of reliable electrical fuses. With a voltage range of 551-600 V and a one-time only classification, these fuses are sure to meet your needs. The black color and 5 inch length make them easy to identify and install. Each fuse has a 6 amp capacity, making them ideal for a variety of electrical applications. These fuses are made in the United States and are a great addition to any electrical supply collection.