This lot of 3 Bussmann FWH-50B high speed fuses are a great addition to any electrical equipment collection. With a maximum amperage of 50A and 500VAC ~ 200kA, these fuses are sure to provide reliable protection. The model number FWH-50B and the number of poles being 1 are important aspects to note. These fuses are compatible with any room and are ideal for use in business and industrial settings. The brand Bussmann is well-known for its quality products and these fuses are no exception.