NEMA L14-20R Female Twist Locking Receptacle American Power Cord, 20A, 125V/250V, UL/cULus/ETL Certified
NEMA L14-20R
The NEMA L14-20R is a 20A 125V/250V Female Twist Locking Receptacle with 4 prong 3 poles 4 wires, ideal for backup generators, transfer switches, and industrial power distribution requiring 125/250V. This American Power Cord is UL/cULus/ETL certified and constructed with RoHS, REACH, PAHS, and Prop65 compliant materials. Built to NEMA WD-6 standards for secure multi-voltage locking power.
Power Cord & Power Connectors Manufacturer With RoHS, Reach, PAHs Compliant.
Frequently Asked Questions
Common questions about NEMA NEMA L14-20R cords and connectors
The NEMA L14-20R is a NEMA locking connector rated 20 A at 125/250 V, 3-pole, 4-wire (grounded), for single-phase split-phase circuits. The L-prefix indicates a twist-locking connector that must be inserted and rotated to secure it, preventing accidental disconnection under vibration. The trailing R identifies it as a female receptacle; it pairs only with the matching NEMA L14-20P.
The 20 A 125/250 V NEMA L14-20R is typically used for generators, temporary power distribution and transfer switches providing both 125 V and 250 V from one locking connector. Selecting the correct 20 A 125/250 V locking connector ensures the contacts and cable can carry the load without overheating and that the single-phase split-phase supply is connected with the proper grounding and polarity.
The NEMA L14-20R is the locking female receptacle (socket-outlet or cord connector) and accepts only the matching NEMA L14-20P male plug. It is rated 20 A at 125/250 V in a 3-pole, 4-wire (grounded) configuration, and it supplies power to the connected cord or equipment only when the correctly keyed 20 A plug is inserted.
No. NEMA connectors are keyed by voltage, current, phase and grounding, so the NEMA L14-20R mates only within its own 20 A 125/250 V family. The L14 provides two hots, neutral and ground for 125/250 V; it is not a three-phase connector and cannot mate with L15/L16 three-phase locking types. When two configurations must be joined, use a properly rated, UL-listed adapter or cord set, and never exceed the lowest current rating in the chain.
Yes. We manufacture UL/cUL and ETL listed NEMA L14-20R cord sets, rewireable plugs and receptacles, and molded connectors using RoHS, REACH, PAHS and Proposition 65 compliant cable, with custom lengths, wire gauges, jacket colors, strain relief and labeling. MOQ is typically 200-1000 pieces, samples ship in 7-15 days and bulk production takes 15-20 working days.
