NEMA 5-15P to14-50R Adapter
Need to plug your 50A EV charger or RV into a standard wall outlet? This NEMA 5-15P to 14-50R adapter provides a safe, temporary bridge for Level 1 charging and low-power maintenance. Constructed with 100% pure copper 12AWG wire to ensure the highest safety standards for continuous household current.
-
Plug: NEMA 5-15P (Standard 15A 3-Prong Male)
-
Receptacle: NEMA 14-50R (50A EV/RV Female)
-
Maximum Load: 15 Amps / 1,875 Watts
-
Wire Gauge: 12 AWG / 3 Conductors (STW Rated)
The Solution for Emergency & Maintenance Power
Whether you are at a friend’s house and need an emergency EV “trickle charge” or you want to power your RV’s lights and fridge while parked in the driveway, our NEMA 5-15P to 14-50R adapter is the tool you need. It bridges the gap between massive 50A connectors and the common 120V household socket.
Why Quality Matters
At [Your Brand Name], we understand that using a 50A receptacle on a 15A circuit requires precision engineering to prevent overheating.
-
Over-Specced for Safety: While many competitors use 14AWG wire, we use 12AWG (12/3) STW cable. This thicker copper reduces resistance and heat buildup during long-duration charging sessions.
-
Integrated Grounding: A full 3-wire system ensures that your device remains properly grounded, protecting both the user and the sensitive electronics in your EV or RV.
-
Industrial STW Jacket: The outer casing is water-resistant, flame-retardant, and built to withstand the rigors of garage and outdoor environments.
-
Molded “Easy-Pull” Handles: High-impact PVC heads feature ergonomic grips to prevent cord-fraying and ensure a secure fit into aged wall outlets.
Technical Specifications
| Feature | Specification |
| Input Plug | NEMA 5-15P (Standard 15A, 125V) |
| Output Receptacle | NEMA 14-50R (50A, 125/250V) |
| Max Current | 15 Amps (12 Amps Continuous) |
| Max Wattage | 1,875 Watts |
| Cable Type | STW 12AWG / 3C |
| Compatibility | Tesla Mobile Connector, Level 1 EVSE, RV (Low Power) |
⚠️ Critical Safety Guidance
Please Read Before Use:
This adapter does not increase the power of your wall outlet. Your standard household circuit is limited to 15A.
EV Owners: You MUST manually set your car’s charging limit to 12 Amps (the 80% safety rule) via your vehicle’s screen or app. Failure to do so will trip your home’s circuit breaker.
RV Owners: This will power your lights, fans, and electronics, but it will not support air conditioners or electric heaters.
Frequently Asked Questions (FAQ)
Q: Will this charge my Tesla?
A: Yes, this is a common “emergency” adapter for Tesla owners. It will provide roughly 3–5 miles of range per hour of charging (Level 1).
Q: Can I use this for my 50A RV?
A: Yes, for “shore power” maintenance. It is perfect for keeping your batteries topped up and running lights, but do not try to run the AC or microwave.
Q: Is it safe to leave plugged in overnight?
A: Yes, provided your device is limited to 12A. Our 12AWG wire is specifically chosen to handle continuous 12A loads without thermal degradation.