24 amp EV charger: power, breaker size and range per hour
24 A × 240 V = 5.76 kW · circuit ≥ 30 A (usually a 30 A breaker) · about 19 mi of range per hour at 30 kWh/100 mi
The breaker figure follows the NEC rule that EV charging is a continuous load, so the circuit is sized at 125% of the charger's current (see DOE AFDC: charging at home). This is an estimate, not electrical advice; at 208 V (some apartments) power is about 13% lower.
Range added per hour for popular EVs
| EV | EPA kWh/100 mi | Per hour | Per 8-hour night |
|---|---|---|---|
| Tesla Model Y | 26.5 | 22 mi | 174 mi |
| Tesla Model 3 | 29.6 | 19 mi | 156 mi |
| Chevrolet Equinox EV | 32.6 | 18 mi | 141 mi |
| Ford F-150 Lightning | 47.9 | 12 mi | 96 mi |
| Hyundai Ioniq 5 | 34.5 | 17 mi | 134 mi |
| Ford Mustang Mach-E | 33.6 | 17 mi | 137 mi |
| Kia EV9 | 41 | 14 mi | 112 mi |
| Rivian R1S | 43.2 | 13 mi | 107 mi |
Estimates; assumes the car accepts 5.8 kW on AC. All EVs.
ENERGY STAR chargers rated 24 A (0), lowest standby first
No featured charger is listed at exactly this current; many adjustable chargers can be set to it.