Simply tighten the thumb screw to clamp the breaker lockout securely over the tie bar, then insert the lock to prevent the clamp from being loosenedThis lockout device isolates and secures circuit breaker switches to protect employees against electrical accidents during equipment maintenanceEquipping your employees with the proper lockout tools and warning devices can save lives, reduce lost employee time and cut insurance costsBrady® is a world leader in lockout tagout products and services offering industry expertise and a broad range of durable, easy to use lockout devicesFor use on breakers that do not have a hole in the switch tongue, including multipole breakers with tie barsTurn thumbscrew to clamp lockout securely onto switch, then snap the cover closed to prevent thumbwheel from being loosened