This American standard NEMA 5-15P three pole grounded power plug strictly follows the North American NEMA interface standard and UL 817 safety specifications for production. It has passed UL safety certification and is compatible with 125V/60Hz power supply networks in the United States, Canada, Mexico, and other regions. It is a standard power supply access component with a metal shell for electrical equipment and is widely used as a power supply accessory for household appliances, office equipment, and commercial devices. It is a highly universal standard plug-in component in the North American market.

The plug adopts the classic "one circle, two flat" three pole layout, and the length of the cylindrical grounding pin is significantly longer than the zero fire flat pins on both sides. When inserted into the socket, the grounding circuit is first conductive, and when pulled out, it is finally disconnected, forming a safety logic of "grounding first, power on later; power-off first, ground off later". When metal shell equipment such as refrigerators, washing machines, computer hosts, printers, etc. have insulation damage or shell leakage faults, the grounding circuit can instantly discharge the fault current, effectively avoiding the risk of electric shock to the human body and fully meeting the safety requirements of mandatory grounding for Class I electrical appliances in North America. The two zero flame flat pins follow a polarity differentiation design, with precise width and size corresponding to the zero flame hole position of the socket, to avoid safety hazards caused by reverse zero flame connection; The pin end is equipped with a circular positioning hole, which can be precisely engaged with the elastic protrusion inside the socket, improving the retention force after insertion, reducing accidental pulling and collision caused by plug detachment, and ensuring power supply continuity. All pin sizes and inter pole spacing strictly comply with NEMA unified specifications, which can smoothly adapt to all compliant American standard three hole wall sockets and mobile plugs. The universal interchangeability is strong, avoiding problems such as overheating and poor contact of non-standard parts from the root.

The plug housing adopts integrated injection molding technology, with a tight and seamless overall structure. The surface of the housing is clearly stamped with UL Certification marks and rated parameters, which meets the requirements of North American electrical product compliance labeling and facilitates quick identification of specifications and compliance attributes. The tail integrates a multi tiered anti bending and bending wire protection structure, which evenly disperses the stress generated by wire pulling and repeated bending through multiple layers of circular grooves, effectively alleviates the fatigue loss at the root of the wire, reduces the probability of internal copper wire breakage and outer sheath cracking, and extends the service life of the supporting Power cord. Internally equipped with a lockwire fastening structure, coupled with precision cold pressing technology to connect the wire core and pins, the tensile performance meets UL industry standards, and daily dragging and moving are not prone to wire core loosening and terminal detachment problems, ensuring long-term connection stability.

Both the conductive pins and grounding electrodes are made of high-purity copper alloy substrates with precision machining. The surface is uniformly plated with nickel for oxidation resistance, resulting in low conductivity loss and low contact resistance. The temperature rise is stable under long-term rated load conditions, and the electrical contact performance can be maintained tightly and reliably even after thousands of repeated insertions and removals. The insulation shell is made of UL94 V0 grade flame-retardant engineering plastic, which has high electrical insulation strength, excellent impact resistance, and high and low temperature resistance. It can quickly self extinguish in the event of external open flames, fully isolate internal live parts, and prevent electric shock and fire risks.

The mainstream rated specification of the product is 15A 125V, which can cover the current carrying requirements of most household and commercial appliances. It is suitable for various electrical products with metal shells such as refrigerators, washing machines, air conditioners, microwave ovens, desktop computers, servers, projectors, power tools, etc. It can be integrated into finished power cords as an original factory accessory, as well as used for customized wire processing, maintenance and replacement of old equipment, and overseas engineering wiring matching. It is a safe, compliant, and widely applicable standard power plug component in the North American power supply system.