NEMA L1-15 — 125 V, 15 A Twist-Lock Plug & Receptacle
NEMA L1-15 is a twist-locking configuration per NEMA WD-6: 125 V, 15 A, 2-pole 2-wire non-grounding. Non-grounding locking (rare). The receptacle is L1-15R, the matching plug L1-15P.
No free-licensed face diagram exists for this configuration yet — locking faces are not on Wikimedia Commons. The specs below still identify it unambiguously.
Specifications
- Configuration
- L1-15
- Series
- Locking (L / twist-lock)
- Voltage rating
- 125 V
- Amp rating
- 15 A
- Poles / wires
- 2P–2W
- Neutral
- Yes
- Equipment ground
- No
- Max load (at rating)
- 125 V × 15 A = 1,875 VA
- Continuous (80%)
- 1,500 VA
Load figures are the arithmetic of the device rating at unity power factor. Continuous loads (3 hours or more) are limited to 80% of the circuit rating per NEC 210.19/210.20 — and the branch circuit behind the receptacle comes from the load calculation and conductor sizing, not from the plug face.
Where you meet it
Non-grounding locking (rare). The locking blades twist in and cannot vibrate or pull loose — the reason generators, stage rigs, and equipment connections spec the L series over its straight-blade cousins.
RELATED CONFIGURATIONS
See every configuration on the full NEMA plug & receptacle chart →
Common questions
What is the difference between L1-15R and L1-15P?
The letter is the device: L1-15R is the receptacle (outlet), L1-15P is the plug on the cord. Both share the same configuration — 125 V, 15 A, 2-pole 2-wire non-grounding, twist-locking blades.
Does NEMA L1-15 have a neutral and a ground?
Yes on the neutral — the 125 V rating means the circuit includes a grounded (neutral) conductor. It is a non-grounding configuration: no equipment ground, which is why new installations use its grounding successor.
RUN THE NUMBERS
Run your whole job on the same numbers
These NORDIX tools are a taste of the full platform — bid pipeline, estimating, and job costing that carry your numbers from the first bid to the final invoice.
See what NORDIX does →