NEMA 10-50P to14-50R Adapter
Unlock the power of your existing 3-prong range outlet. This NEMA 10-50P to 14-50R adapter allows you to connect modern 4-prong devices (EV Chargers, Power Tools) to older 10-50R wall sockets. Built with industrial-grade 6AWG copper and a weather-resistant STW jacket for maximum safety and reliability.
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Plug: NEMA 10-50P (3-Prong Legacy Range Male)
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Receptacle: NEMA 14-50R (4-Prong EV/RV Female)
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Rating: 50 Amp, 12,500 Watts
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Length: 1.5 Feet (Flexible 6/3 STW Cable)
Bridge the Gap Between Legacy and Modern Power
Do you have an older 50-amp range outlet in your garage or utility room? Our NEMA 10-50P to 14-50R adapter is the expert-recommended solution for EV owners (Tesla, Rivian, Ford) who want to utilize existing infrastructure without the high cost of rewiring.
Engineered for Electrical Safety
At [Your Brand Name], we prioritize your home’s safety. This adapter uses a Hot-Hot-Ground configuration. While the 10-50P lacks a dedicated neutral, our internal wiring bridges the connection to ensure your 240V equipment functions perfectly and safely.
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Pure 6-Gauge Copper: We use only 100% pure copper 6/3 STW wire, capable of handling continuous 50-amp loads without overheating—a critical factor for EV charging which can run for 8+ hours.
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Flammability Protection: The heavy-duty PVC jacket is heat-resistant and flame-retardant, meeting UL-standard material requirements.
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Cold-Weather Flexibility: Engineered to remain pliable in sub-zero temperatures, making it ideal for outdoor-adjacent garage use.
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Ergonomic Grip: Both ends feature molded handles to prevent wire strain and ensure a secure connection every time.
Technical Specifications
| Feature | Specification |
| Male Plug | NEMA 10-50P (3-Prong, 50A, 125/250V) |
| Female Connector | NEMA 14-50R (4-Prong, 50A, 125/250V) |
| Wire Type | STW 6AWG/3C Heavy Duty |
| Maximum Load | 50 Amps / 12,500 Watts |
| Voltage | 250V |
| Material | Copper, Flame-Retardant PVC |
⚠️ Important Compatibility Note (Expert Guidance)
Please Read Before Purchasing:
The NEMA 10-50P is a legacy outlet that does not have a neutral wire. This adapter is specifically designed for EV Charging (Level 2) and high-power 240V tools that do not require a 120V neutral circuit.
Warning: This adapter is NOT recommended for use with RVs that have 120V internal electronics (microwaves, TVs, etc.) unless your RV’s power system is specifically designed to handle a missing neutral. Always verify your device’s wiring requirements.
Frequently Asked Questions (FAQ)
Q: Can I use this for my Tesla Mobile Connector?
A: Yes! The Tesla Gen 2 Mobile Connector does not require a neutral wire, making this adapter perfect for charging from a 10-50R outlet.
Q: Why is my 10-50P outlet labeled 125/250V?
A: The 10-50 configuration was common in older homes for electric ranges. While the outlet supports 250V, this adapter provides the 240V/250V “hot” lines needed for modern high-speed charging.
Q: Is this adapter UL-listed?
A: Our adapters are manufactured using UL-certified components (plug, wire, and connector) to ensure the highest safety standards in the industry.