Grip Tight Circuit Breaker Lockout, Standard Single and Double Toggles, Clamp-On, RedMfr #: 493B Lockout tagout circuit breaker lockout is best used on standard height and tie bar toggles typically found on 120 and 240 volt breakers; Best used as part of a comprehensive OSHA compliant lockout tagout safety program Innovative patented Grip Tight design effectively locks out circuit breakers with a simple thumb turn and then close clamping handle for a tight grip on the toggle Durable construction with powder coated steel and reinforced