NEMA 14-50 outlet
The NEMA 14-50 is a 240 V, 50 A four-prong outlet — the same type used by electric ranges and RV parks — and the most common outlet for plug-in Level 2 EV chargers, supporting up to 40 A of continuous charging.
The NEC 125% continuous-load rule means a 50 A outlet supports a 40 A maximum charging current. For EV use, code requires a GFCI breaker on new 14-50 installations, and electricians recommend industrial-grade (e.g. Hubbell) receptacles over $10 hardware-store units, which can overheat under daily EV loads.