How it connects
Straight-blade push-in mating with friction-fit contact between copper-alloy male blades/grounding pin and female receptacle contacts.
Male and female halves
Male plug (P) featuring four protruding prongs/blades, mating with a female receptacle or connector body (14-50R).
Usually connects to
- NEMA 14-50R female connector
- NEMA 14-50/14-30 combo receptacle
Common sizes
- Standardized fixed-dimension NEMA configuration: rated at 50 A, 125/250 V AC.
Where it is used
electric vehicle (EV) Level 2 chargingrecreational vehicles (RVs)residential electric cooking rangesportable generatorswelding and industrial equipment
Variations
- Straight-body cord plug
- Angled plug
- Weatherproof / easy-grip RV handle plug
How to recognise it
Four protruding conductive prongs arranged symmetrically: two parallel vertical hot flat blades on the sides, one vertical flat neutral blade centered at the bottom, and one U-shaped or rounded grounding pin at the top.
Often confused with
| Confused with | How to tell them apart |
|---|---|
| NEMA 14-30P | NEMA 14-30P is rated for 30 A (dryers) and has an L-shaped neutral blade, whereas the 14-50P has a straight neutral blade. |
| NEMA 6-50P | NEMA 6-50P has only 3 prongs (2 hots + ground, 250V only, no neutral blade), whereas 14-50P has 4 prongs (2 hots, neutral, ground for 125/250V). |
| NEMA 10-50P | NEMA 10-50P is an older non-grounding 3-prong plug (two angled hots and one flat neutral) without a dedicated ground pin. |
| NEMA 14-50R | NEMA 14-50R is the female outlet/receptacle with blade slots, whereas 14-50P is the male plug with protruding blades. |
Also called
NEMA 14-50PNEMA 14-50 plug50A RV plug50-amp 4-prong plugfour-prong range/stove plug
Good to know
NEMA 14-50 is the dominant standard for 50A RV shore power connections and standard Level 2 home EV portable charging units.
Related connections
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