NEMA L20-30P Male Twist Locking Plug American Power Cord, 30A, 3φ Y 347/600V, UL/cULus/ETL Certified
NEMA L20-30P
The NEMA L20-30P is a 30A 3φ Y 347/600V Male Twist Locking Plug featuring 4 prong 4 poles 4 wires, engineered for high-voltage three-phase wye industrial systems, large motors, and heavy equipment. This American Power Cord carries UL/cULus/ETL certification and employs RoHS, REACH, PAHS, and Prop65 compliant materials. Built to NEMA WD-6 standards for robust 347/600V three-phase power.
Power Cord & Power Connectors Manufacturer With RoHS, Reach, PAHs Compliant.
Frequently Asked Questions
Common questions about NEMA NEMA L20-30P cords and connectors
The NEMA L20-30P is a NEMA locking connector rated 30 A at 347/600 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 L20-30R.
The 30 A 347/600 V three-phase wye NEMA L20-30P is typically used for locking 600 V-class three-phase industrial equipment found in heavy manufacturing and mining-related facilities. Selecting the correct 30 A 347/600 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 L20-30P 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 L20-30R female receptacle (socket-outlet or cord connector). It carries 30 A at 347/600 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 L20-30P mates only within its own 30 A 347/600 V three-phase wye family. The L20 is keyed for 347/600 V and cannot mate with 208 V L18 or 480 V L19 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 L20-30P 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.
