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Wire for EV Charger

Wire for EV chargers transfers power from the electrical panel to the charger. It comes in various sizes, with lower gauges supporting higher currents. Choosing the right wire ensures safety, efficiency, and long-term performance. Proper installation, following electrical codes, prevents hazards and maximizes the lifespan of the system.

Guide to EV Charger Wire Gauge and Power Ratings

When installing an electric vehicle (EV) charger, it’s crucial to choose the right wire gauge for your installation to ensure safety, efficiency, and optimal performance. This guide provides a reference for selecting the appropriate wire size based on the electric vehicle branch circuit and the power rating of the EV charger.

Wire Gauge and Power Rating for EV Charger Installations

EV Charger Wire Gauge (American Wire Gauge) EV Charger Wire Size (mm²) Electric Vehicle Branch Circuit Power Rating of EV Charger (kW)
14 AWG 2.08 mm² 15 Amp Circuit 2.8 kW
12 AWG 3.31 mm² 20 Amp Circuit 3.8 kW
10 AWG 5.26 mm² 30 Amp Circuit 5.7 kW
8 AWG 8.36 mm² 40 Amp Circuit 7.6 kW
6 AWG 13.30 mm² 50 Amp Circuit 9.6 kW
4 AWG 21.15 mm² 60 Amp Circuit 11.5 kW
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