Circuit Breaker Lockout, Circuit Breaker Lockout Type Clamp-On, For Circuit Breaker Type Single Pole, For Maximum Padlock Shackle Diameter 5/16 in, For Voltage 480/600V AC, Maximum Number of Padlocks 1, Overall Height 2.5 in, Overall Length 4 in, Overall Width 3.67 in, Features Thumb Screw Tightening Mechanism, For Use With Circuit Breaker Switches, Includes Cleat, Lockout Color Red, Lockout Material Polycarbonate, Mount Type Clamp-On with Screw