C20-to-C19 Power Cable for Network Devices That Require a Heavy-Gauge Connection. This UL-certified power extension cord features 12 AWG wire suitable for high power connections, making it a reliable solution for large server applications that require a higher-rated, heavier-gauge cable. The P036-EN4 can be used to connect a server, router, network switch or blade server enclosure to a UPS system or PDU. The four-foot (1.2-meter) length helps reduce cable clutter by providing a tailor-made fit between the device and the PDU in a crowded rack enclosure. Forms a Special Locking Connection with a P-Lock Outlet. The P-Lock Lite C20 power connector with locking tab forms a secure connection with a PDU with a P-Lock outlet, including Eaton G4 and newer PDUs with C19 and C39 outlets. The P-Lock Lite connection helps reduce the risk of accidental cable disconnects that can cause costly equipment downtime. The P036-EN4 lets you replace a non-locking C19/C20 cable or upgrade an entire PDU application by pairing it with a high-density Eaton PDU or other PDU with P-Lock outlets.