Legrand® Pass & Seymour® Turnlok® Plugs, Connectors, and Receptacles are built to work for you, offering years of dependable service in the toughest real-world conditions and delivering maximum productivity on the job site. They are typically used to provide additional locking safety measures in industrial environments, where heavy use can sometimes result in loose or broken connections when non-locking devices are used. You?ll see durability and productivity everywhere from our choice of premium materials and uncompromising construction to our superior, innovative designs based on decades of feedback from contractors and maintenance, repair, and overhaul professionals.