TRIPP-LITE PLC19BK Steckverriegelungseinsätze (C20-Netzkabel zu C19-Ausgang), Schwarzberblick Tripp Lite PLC19BK BLACK color Plug lock inserts prevent accidental disconnection of C20 plug in power cords from C19 output receptacles. IEC 60320 plug in electrical cords are frequently loose fitting and are often subject to accidental disconnection during routine network maintenance. To prevent critical equipment plugs from getting knocked loose, place a Plug lock insert over any C20 input cord and connect it to any C19 outlet. The insert