Our 5511 series features the domestic, 3-prong, 360° Rotating North American Plug (NEMA 5-15P) with the NEMA 5-15R Q-Lock Receptacle. The Q-Lock is a NEMA locking receptacle that holds the pins of a 5-15P Plug to keep your cord from being accidentally unplugged! These receptacles are sturdy yet unplug with ease whenever you want to remove the power cord! These North American extension cords are the standard cords used to connect devices, appliances, and electronics to a power source. On one end, these cords plug directly into any standard NEMA wall outlet or receptacle, and on the other, the receptacle connects to any 5-15P style plug. These are considered extension cords because they increase the range (length) at which you may power your equipment. The 5511.072QL is on 16/3 SJT cable. It carries the UL and C-UL approvals and is rated at 13A - 125V.