What circuit do I need for a home EV charger?

Most home EV chargers require a dedicated 40-amp, 240-volt circuit with 8 AWG wire, though the specific requirements depend on your charger's amperage rating and your electrical panel's available capacity.

For Level 2 home chargers (the most common type), you'll typically need a 240-volt circuit rated 25% higher than the charger's continuous load. A 32-amp charger (like most Tesla Wall Connectors and ChargePoint units) requires a 40-amp circuit breaker and 8 AWG wire. Some smaller 16-amp chargers can use a 20-amp circuit with 12 AWG wire, while high-powered 48-amp chargers need a 60-amp circuit with 6 AWG wire.

The circuit must be GFCI protected as required by the Canadian Electrical Code adopted in New Brunswick. Most modern EV chargers have built-in GFCI protection, but TSANB may require additional protection depending on the installation location. The circuit also needs proper grounding and must terminate at a NEMA 14-50 outlet (for plug-in chargers) or be hardwired directly to the unit.

Panel capacity is crucial - your electrical panel needs available space for the new breaker and sufficient amperage capacity. Many older New Brunswick homes have 100-amp panels that may need upgrading to 200-amp service to safely handle an EV charger plus existing loads. A licensed electrician can perform a load calculation to determine if your current panel can handle the additional load.

TSANB permit requirements apply to all EV charger installations in New Brunswick. The work must be performed by a licensed electrical contractor who will pull the permit, complete the installation to code, and arrange for TSANB inspection. This ensures the installation meets all safety requirements and maintains your home insurance coverage.

Installation location affects the circuit requirements too. Garage installations are most common and straightforward, while outdoor installations need weatherproof equipment rated for New Brunswick's harsh winters and coastal conditions in areas like Saint John and Moncton. The circuit may need to be buried below the frost line (1.2-1.5 meters in NB) for outdoor runs.

Typical costs for EV charger circuit installation in New Brunswick range from $1,200 to $1,800 if your panel has adequate capacity, or $3,000 to $5,000 if a panel upgrade is needed. The investment pays off through faster charging times - a 40-amp circuit can fully charge most EVs overnight compared to 20+ hours on a standard household outlet.

Need help finding a licensed electrician for your EV charger installation? New Brunswick Electrical can match you with qualified contractors who specialize in EV charging systems and understand TSANB requirements.