Heavy Duty Extension Cord for EV Charging Use with 10-30P male plug and 14-50R female receptacle: This heavy-duty EV cord adapter is perfect for your need. With a durable 10-gauge copper construction, this 10-30 to 14-50 adapter delivers reliable power for EV charging. 1.5 Ft Heavy Duty Extension Cord for EV Charging. The EV extension cord has a female connector end that features 50 Amp 14-50R 125/250 Volt compatible with the leading EV manufactures vehicles. Premium, Heavy Gauge Extension Cord Built to Last: This 10-30p to 14-50r adapter is designed for high-performance, this heavy duty extension cord 1.5 ft features ergonomic molded plug, copper wiring coated, heavy duty UV-resistant, 10 gauge STW indoor-outdoor water resistant jacket. UL Certified Extension Cord - Safe and Compliant: Meeting both UL certification and OSHA standards, this 10-30P to 14-50R EV Charger Adapter Cord, 1.5 Ft - 10/3 STW 30 Amp Male Plug to 50 Amp Female Receptacle is heavy duty, so you can rely o