Single Pole Breaker Lockout, Clamp-On, Circuit Breaker Voltage 120/277, For Use With Single-Pole Breakers, Max. Number of Padlocks 1, Padlock Shackle Max. Dia. 9/32 in, Red, Height 13/16 in, Width 1 1/8 in, Length 2 1/4 in, Material Polycarbonate, Circuit Breaker Poles 1