NEMA L7-20P Male Twist Locking Plug American Power Cord, 20A, 277V, UL/cULus/ETL Certified
NEMA L7-20P
The NEMA L7-20P is a 20A 277V Male Twist Locking Plug with 3 prong 2 poles 3 wires, engineered for commercial lighting, ballasts, and industrial fixtures at 277V with locking capability. This American Power Cord is UL/cULus/ETL certified and made with RoHS, REACH, PAHS, and Prop65 compliant materials. Manufactured to NEMA WD-6 standards for secure 277V lighting installations.
Power Cord & Power Connectors Manufacturer With RoHS, Reach, PAHs Compliant.
Frequently Asked Questions
Common questions about NEMA NEMA L7-20P cords and connectors
The NEMA L7-20P is a NEMA locking connector rated 20 A at 277 V, 2-pole, 3-wire (grounded), for single-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 P identifies it as a male plug; it pairs only with the matching NEMA L7-20R.
The 20 A 277 V NEMA L7-20P is typically used for locking 277 V commercial lighting and industrial circuits on 480Y/277 V systems. Selecting the correct 20 A 277 V locking connector ensures the contacts and cable can carry the load without overheating and that the single-phase supply is connected with the proper grounding and polarity.
The NEMA L7-20P is the locking male plug, typically fitted on the end of a power cord or equipment inlet lead, and it only mates with a matching NEMA L7-20R female receptacle (socket-outlet or cord connector). It carries 20 A at 277 V in a 2-pole, 3-wire (grounded) configuration, so the outlet, wiring and overcurrent protection must all be rated for at least 20 A.
No. NEMA connectors are keyed by voltage, current, phase and grounding, so the NEMA L7-20P mates only within its own 20 A 277 V family. The L7 is keyed for 277 V and will not mate with 125 V L5, 250 V L6 or 480 V L8 locking connectors. 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 L7-20P 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.
