NEMA 7-20R Female Receptacle American Power Cord, 20A, 277V, UL/cULus/ETL Certified
NEMA 7-20R
The NEMA 7-20R is a 20A 277V Female Receptacle featuring 3 prong 2 poles 3 wires, engineered for commercial lighting systems and industrial fixtures operating at 277V. This American Power Cord holds UL/cULus/ETL certification and utilizes RoHS, REACH, PAHS, and Prop65 compliant materials. Manufactured to NEMA WD-6 standards for reliable commercial lighting installations.
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Power Cord & Power Connectors Manufacturer With RoHS, Reach, PAHs Compliant.
Frequently Asked Questions
Common questions about NEMA NEMA 7-20R cords and connectors
The NEMA 7-20R is a NEMA connector rated 20 A at 277 V, 2-pole, 3-wire (grounded), for single-phase circuits. It uses the standard NEMA non-locking straight-blade configuration. The trailing R identifies it as a female receptacle; it pairs only with the matching NEMA 7-20P.
The 20 A 277 V NEMA 7-20R is typically used for 277 V commercial and industrial lighting circuits commonly found in North American warehouses, retail and office buildings fed from 480Y/277 V systems. Selecting the correct 20 A 277 V 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 7-20R is the female receptacle (socket-outlet or cord connector) and accepts only the matching NEMA 7-20P male plug. It is rated 20 A at 277 V in a 2-pole, 3-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 7-20R mates only within its own 20 A 277 V family. The 277 V 7-series is specific to 480Y/277 V commercial lighting and cannot be interchanged with 125 V, 250 V or 480 V 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 7-20R 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.
