Circuit Breaker Lockout, Circuit Breaker Lockout Type Clamp-On, For Circuit Breaker Type Oversized, For Maximum Padlock Shackle Diameter 9/32 in, For Voltage 480/600V AC, Maximum Number of Padlocks 1, Overall Height 1.91 in, Overall Length 3.41 in, Overall Width 4.05 in, Features Knurled Thumbscrew with Slot for Optional Screwdriver Adjustment, Fold-Down Cleat Provides Enhanced Switch Throw Blocking, One-Piece Design, Requires No Tools for Installation