065688 is a snap-on 120V circuit breaker lockout device designed for securing circuit breaker switches that have holes in the switch tongue. The device features a Nylon 66 body with stainless steel dowel pins for added durability and security, and dual cavities accommodate different sized switch tongues. It accepts lock shackles up to 9/32" in diameter and operates within a temperature range of -20°C to 120°C (-4°F to 250°F). The lockout device carries a UL 94-HB rating for plastic components and is compatible with various circuit breaker manufacturers including Bryant, Challenger, Cutler Hammer, General Electric, Siemens, Square, and Westinghouse. This product is ideal for lockout/tagout (LOTO) safety procedures in industrial and commercial electrical maintenance applications.