Product details:

Suitable for use with service entrance equipment, this general-duty safety switch provides a 10kA short-circuit current rating when used with, or protected by, a Class H fuse. It has a 100kA short-circuit current rating when used with, or protected by, a Class R cartridge-type fuse (with a Class R fuse kit installed). Features include visible blades for positive identification that the switch is Off, a quick-make, quick-break operating mechanism, and spring-reinforced, plated-copper fuse clips. The lugs are suitable for aluminum or copper conductors. There are multiple padlock provisions in the Off position. An equipment grounding kit, available separately, is required.