Black NEMA 5-15P to Locking L5-15R Straight to Locking Adapter Cords is designed to adapt a standard straight blade connector to a twist locking version. Be cautious of adapting locking to straight blade plugs, as the manufacturer likely used the locking plug to prevent against un intentional unplugging. If your plug is used in a high traffic area the unplugging of an operating machine can damage the equipment or operators.
NEMA 5-15P
General Information:
The NEMA 5-15P is a 3 Wire grounded plug featuring two blades (can be equal or unequal widths due to the ground pin forcing polarity) and one ground pin rated up to 125V AC and 15 Amps. The ground pin can be either a rounded shape or a U Shape depending on the manufacturer, but both are functionally the same. The NEMA 5-15P is your standard household plug used for to connect small appliances such as TV's, Microwaves, hairdryers, etc to a wall outlet. The NEMA 5-15P is compatible with a NEMA 5-20R T-Slot outlet, which is commonly found in new home installations.
What does a NEMA 5-15P Connect to?
 |  | The NEMA 5-15 Plug connects to both the NEMA 5-15R Connector and the NEMA 5-15/5-20R Wall Outlet. The connector is commonly found on Extension cords, and the NEMA 5-15/5-20R Wall Outlet is the standard power supply outlet in all residential and commercial construction in North America. |
NEMA L5-15R
General Information:
The NEMA L5-15R is a 3 wire grounded connector with a hot, neutral and ground slot rated up to 125VAC and 15A. This is a locking receptacle which makes this plug popular in commercial and industrial settings where high traffic or moving of equipment is common. This connector can be distinguished against other NEMA Locking connectors by its small blade circumference on the inlet head and inward turned tabs on the neutral blade. Due to the low power draw, this is commonly found in commercial and some custom residential settings as an alternative to the straight blade NEMA 5-15R which does not have any locking safety mechanism.
What does the NEMA L5-15R Connect to?
 | The NEMA L5-15R Locking Connector is designed to be twist locked into place with a NEMA L5-15P Locking Plug. These are commonly found on smaller devices that are found in highly trafficked areas, or on devices that should not be easily unplugged. |
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