Cole Hersee 24505 Lockout Lever Kit for Master Disconnect Switches Special lever and flange plate accept a padlock to securely lock a disconnect switch in the off position, which is required by many lock-out/tag-out safety regulations For use with Cole Hersee lever actuated master disconnect switches with a 3/4-Inch diameter (19.1mm) mounting stem We recommend the use of a padlock with a 5/16-Inch (7.9mm) diameter shackle