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 strengthens the connection of the plug to the outlet keeping critical equipment plugged-in and running during routine rack access and maintenance. Plug-lock inserts provide a no-clutter alternative to common zip-tie cord retention schemes and a low cost answer to expensive proprietary locking plug and outlet hardware. PLC19BK Plug-lock inserts ship in packages of 100. - PLC19BK Plug-lock inserts keep C20 power cords connected to C19 outlets - Prevents accidental disconnection of network hardware during routine rack maintenance - Universal compatibility no special cables outlets or special PDU hardware required - BLACK color inserts ship in packages of 100 more colors available - 100 BLACK color C20 plug / C19 outlet compatible Plug-lock inserts - Tripp Lite PLC19BK Plug-lock inserts prevent accidental disconnection of C20 plug-in power cords from C19 outlets - BLACK color PLC19BK inserts ship in packages of 100 pieces - Corrects loose-fitting IEC60320 powerconnections that could lead to accidental disconnection of power cables - Plug-lock inserts strengthen the connection of your C20 plug-in device to any C19 outlet keeping vital network equipment plugged in and running during routine rack access and maintenance - Universal compatibility ensures proper fit and enhanced plug retention when used with any standard C20 plug and C19 outlet combination; no proprietary cables or outlets required - Simple installation just place a Plug-lock insert over any C20 equipment power cord and plug it in - Pull tabs enable safe retraction of the insert from powered C19 outlets - Plug-lock inserts provide a no-clutter alternative to common zip-tie cord retention schemes and prevents reliance on lesser elegant remedies involving duct tape electrical tape or super glue - High strength PA66 nylon UL94 material with V2 flame rating