NEMA L7-30R Female Twist Locking Receptacle American Power Cord, 30A, 277V, UL/cULus/ETL Certified
NEMA L7-30R
The NEMA L7-30R is a 30A 277V Female Twist Locking Receptacle 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 L7-30R cords and connectors
The NEMA L7-30R is a NEMA locking connector rated 30 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 R identifies it as a female receptacle; it pairs only with the matching NEMA L7-30P.
The 30 A 277 V NEMA L7-30R is typically used for locking 277 V commercial lighting and industrial circuits on 480Y/277 V systems. Selecting the correct 30 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 L7-30R is the locking female receptacle (socket-outlet or cord connector) and accepts only the matching NEMA L7-30P male plug. It is rated 30 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 30 A plug is inserted.
No. NEMA connectors are keyed by voltage, current, phase and grounding, so the NEMA L7-30R mates only within its own 30 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 L7-30R 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.
