Circuit Breaker Lockout Circuit Breaker Lockout Type Clamp-On For Circuit Breaker Type Single Pole For Maximum Padlock Shackle Diameter 9/32 in For Voltage 120/240V AC Maximum Number of Padlocks 1 Overall Height 0.75 in Overall Length 3 in Overall Width 0.81 in Features Red Octagon Shape Reinforces Lockout Status For Circuit Breaker Manufacturer Stopout For Use With 120-240V AC Circuit Breakers Lockout Color Red Lockout Material Plastic