EV charger components

The EVSE. The wall box isn't really a charger — the charger is in the car. The wall unit supplies AC power and handles the safety handshake. ENERGY STAR notes Level 2 units require a heavy-duty 240-volt circuit like an electric dryer's, and that units wired to 50 amps charge faster. AFDC puts residential Level 2 output at up to 30 amps delivering 7.2 kW, with the broader Level 2 class spanning roughly 7.2 to 19.2 kW.

The circuit. A dedicated 240-volt branch circuit with its own breaker, sized by your electrician using the NEC's continuous-load rules. Nothing else should share it. Wiring cost tracks distance at $6 to $12 per linear foot.

The connection. Hardwired or plug-in. Bob Vila puts hardwired at $850–$1,800 and plug-in at $1,000–$2,200 including labor. Plug-in makes swapping the unit easier; some higher-output units must be hardwired. Check the manufacturer's specification before you choose.

Panel capacity. AFDC notes some homes have insufficient electrical capacity for Level 2 equipment, though a qualified electrician can add circuits to accommodate it. If a service or panel upgrade is needed, budget $1,500–$4,000 for a new breaker box. Also worth knowing: some setups use load-sharing so two chargers split one circuit, at $1,000–$1,500 for a dual charger with power sharing.

How to choose

Match the unit's amperage to what your panel can actually carry

Buying a 48-amp charger for a panel that can support 30 amps means a panel upgrade you may not want to pay for.

Confirm outdoor rating if it's going outside

AFDC says outdoor installation and charging in rain are safe — with outdoor-rated equipment. Indoor-rated units mounted outside are a real hazard.

Look for a nationally recognized test lab mark

ENERGY STAR warns that not all EV chargers sold are safety certified, including some from large online and storefront retailers.

Decide hardwired vs plug-in before ordering

It changes the price ($850–$1,800 hardwired versus $1,000–$2,200 plug-in) and it may be dictated by the model you pick.

Ask about load management before upgrading the panel

Power-sharing and load-management features sometimes let you avoid a $1,500–$4,000 panel job. Ask if your setup qualifies.