NEMA 10-30P to14-50R Adapter
Professional Grade Level 2 EV Charging Adapter
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Instant Upgrade: Convert your existing 3-prong NEMA 10-30 dryer outlet into a NEMA 14-50R port for EV charging without expensive rewiring.
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Safety Certified: Built with UL/ETL recognized components to ensure home and vehicle protection.
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Industrial Build: Features 10 AWG 100% pure copper wiring and a flame-retardant STW jacket.
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Wide Compatibility: Seamlessly works with Tesla Mobile Connectors and all standard J1772 Level 2 EVSEs.
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Reliable Performance: Rated for 125V/250V and up to 30 Amps (Recommended 24A continuous load).
Main Product Description
NEMA 10-30P to 14-50R EVSE Adapter: The Safe Bridge for Home Charging
Designed for electric vehicle owners living in homes built before 1996, this NEMA 10-30P to 14-50R adapter provides a secure, high-performance connection between your Level 2 charger and a standard 3-prong dryer outlet.
Technical Specifications
| Feature | Detailed Specification |
| Input Plug | NEMA 10-30P (3-Prong Male) |
| Output Receptacle | NEMA 14-50R (4-Prong Female) |
| Max Current | 30 Amps (24A continuous load recommended) |
| Voltage | 125V / 250V |
| Wire Gauge | 10 AWG Heavy-Duty Pure Copper |
| Cable Jacket | STW (Service, Thermoplastic, Weather-Resistant) |
| Safety Standards | Built with UL/ETL Recognized Components |
Engineering for High-Voltage Safety
1. Optimized for EVSE Protocols
Standard RV adapters often lack the proper grounding configuration needed for electric vehicle charging. Our adapter is specifically wired for Electric Vehicle Supply Equipment (EVSE), ensuring your car’s onboard computer detects a valid ground and passes its internal safety self-checks.
2. Superior Thermal Management
Continuous high-amp charging generates heat. By using 10 AWG high-conductivity copper, this adapter minimizes resistance and prevents overheating during long charging sessions. The rugged STW jacket is rated for temperatures up to 105°C (221°F), providing an extra layer of protection for your home.
3. Durable & Reliable Connection
The molded plug and receptacle are designed to withstand thousands of insertion cycles. The secure fit prevents arcing and loose connections, ensuring consistent power delivery to your Tesla, Ford, Rivian, or other J1772-compatible vehicles.
Important Safety Guidelines
To ensure the longevity of your home’s electrical system and the adapter, please follow these industry-standard practices:
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The 80% Rule: NEMA 10-30 outlets are rated for 30 Amps. For continuous charging (3+ hours), the National Electrical Code (NEC) recommends a maximum load of 80%.
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Action Required: Please manually set your vehicle or charger’s current limit to 24 Amps before you begin charging.
Frequently Asked Questions
Q: Can I use this for my RV or camper?
A: No. This adapter is specifically wired for EV Charging. RVs often require a neutral wire for internal 120V appliances, which 3-prong 10-30 outlets do not provide.
Q: Is it compatible with the Tesla Mobile Connector?
A: Yes. When paired with the Tesla NEMA 14-50 Gen 2 adapter, this allows you to charge directly from a 3-prong dryer outlet.
Q: Can I leave this plugged in outdoors?
A: While the cable itself is moisture and UV resistant, the plug connections should be kept dry. We recommend use in a garage or covered area.
