What EV Charger Do You Need for a 2027 Mercedes-Benz CLA250 with EQ Tech?
Your home supply circuit can push more power than your car can pull. The 2027 Mercedes-Benz CLA250 with EQ Tech maxes out at 48 amps on Level 2 charging. You need a 48 amp EVSE to hit that ceiling, adding 41 miles of range every hour.
The numbers
| Maximum AC charging rate | 11.0 kW (48 A) |
|---|---|
| Charger size to buy | 48 A |
| Circuit breaker required | 60 A |
| Outlet / connection | hardwired (a 48 A EVSE must be hardwired -- no household receptacle is rated for it) |
| Charge port | J1772 |
| Full charge on Level 2 | about 9.2 hours |
| Range added per hour (Level 2) | about 41 miles |
| Full charge on a 120 V outlet | about 70 hours |
| Range added per hour (120 V) | about 5.3 miles |
| EPA rated range | 374 miles |
| Energy for a full charge | about 101.0 kWh at the wall |
Why 48 amps and not more
Your car accepts up to 11.0 kilowatts from a Level 2 source, which maps directly to a 48 amp draw. Buying a larger 50 amp charger will not speed things up because the onboard hardware throttles the intake. Feeding the car fewer amps stretches your recharge time past the 9.2 hours needed for a full tank. Stick to 48 amps to match the vehicle limit. Anything less wastes potential charging speed.
What the install involves
A 48 amp continuous load requires a 60 amp circuit breaker by electrical code. You must hardwire the EVSE directly to your electrical panel because no household receptacle safely handles that kind of sustained draw. Call a licensed electrician to run heavy gauge wiring and mount the unit. Do not attempt DIY installation unless you hold a valid electrical license.
Chargers that match this car
Energy monitoring built in. Hardwire it for the full 48 A.
Compact unit, good for tight garages.
Adjustable from 16 A to 50 A in the app, which helps if your panel is tight.
Worth having as well
Common questions
- What connector does my car use?
- It uses a J1772 connector. This model year falls in the industry transition, so many cars ship with a NACS port and include an adapter.
- How long does a full charge take?
- It takes 9.2 hours at the maximum Level 2 rate. Level 1 charging takes 70 hours if you plug into a standard household outlet.
- Can I use a standard wall outlet?
- Level 1 uses a standard outlet and delivers 5.3 miles per hour. A 48 amp Level 2 setup requires hardwiring and a dedicated 60 amp breaker.
- What products fit this car?
- The Emporia Level 2 EV Charger 48A and the Wallbox Pulsar Plus 48A both deliver the maximum 48 amps. The ChargePoint Home Flex handles 50 amps hardwired, though your car only pulls 48.
Other vehicles
Charging times derived from EPA data for the 2027 Mercedes-Benz CLA250 with EQ Tech (covering 2 EPA trim listings). Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.