NEMA L19-30P Male Twist Locking Plug American Power Cord, 30A, 3φ Y 277/480V, UL/cULus/ETL Certified
NEMA L19-30P
The NEMA L19-30P is a 30A 3φ Y 277/480V Male Twist Locking Plug with 4 prong 4 poles 4 wires, designed for industrial three-phase wye systems, manufacturing plants, and heavy machinery at 277/480V. 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 reliable industrial three-phase power.
Power Cord & Power Connectors Manufacturer With RoHS, Reach, PAHs Compliant.
Frequently Asked Questions
Common questions about NEMA NEMA L19-30P cords and connectors
The NEMA L19-30P is a NEMA locking connector rated 30 A at 277/480 V three-phase wye, 3-pole, 4-wire (grounded, no neutral), for three-phase wye 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 L19-30R.
The 30 A 277/480 V three-phase wye NEMA L19-30P is typically used for locking 480 V wye industrial and commercial three-phase equipment and distribution. Selecting the correct 30 A 277/480 V three-phase wye locking connector ensures the contacts and cable can carry the load without overheating and that the three-phase wye supply is connected with the proper grounding and polarity.
The NEMA L19-30P 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 L19-30R female receptacle (socket-outlet or cord connector). It carries 30 A at 277/480 V three-phase wye in a 3-pole, 4-wire (grounded, no neutral) configuration, so the outlet, wiring and overcurrent protection must all be rated for at least 30 A.
No. NEMA connectors are keyed by voltage, current, phase and grounding, so the NEMA L19-30P mates only within its own 30 A 277/480 V three-phase wye family. The L19 is rated 277/480 V wye and is keyed differently from the 208 V L18 and 600 V L20, so cross-voltage connection is prevented. 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 L19-30P 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.
