Brand: Gladiator Item: Lockout attachment For Use With: Gladiator 800A and 1200A frame MCCBs Diameter: 5-8mm (3/16-5/16in) Application: For locking in the OFF position only. Accepts up to 3 locks Gladiator lockout attachment, 5-8mm (3/16-5/16in) diameter. For use with Gladiator 800A and 1200A frame MCCBs. For locking in the OFF position only. Accepts up to 3 locks.