Oversized Breaker Lockout Circuit Breaker Lockout Type Clamp-On For Circuit Breaker Type Oversized Single Pole For Maximum Padlock Shackle Diameter 9/32 in For Voltage 480/600V AC Maximum Number of Padlocks 1 Overall Height 2.75 in Overall Length 3 in Overall Width 4 in Features Thumbscrew For Use With Breakers 2 1/4 in W X 7/8 in L Includes Cleat Lockout Color Red Lockout Material Nylon/Polypropylene Mount Type Clamp-On