Our 5052 AL series features the 3-prong North American NEMA 5-20P Plug with the IEC-60320-C19 Auto-Lock Connector. The IEC Auto-Lock C19 is an internal mechanism that holds the pins of the C20 Plug or Inlet to keep your device from being accidentally unplugged! These components are sturdy yet unplug with ease whenever you want to remove the power cord! These North American power cords are the recommended cords for networking, laboratory, and communications equipment. They connect on one end to the NEMA 5-20R wall outlet and on the other end to PDUs, servers, and UPSs or any device featuring a C20 inlet. The 5052.098AL is on 12/3 SJTW cable. It carries the UL and C-UL approvals and is rated at 20A - 125V.