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. Safety Switch, 240VAC, 3PST, 100 Amps AC