Gordon from Perth Amboy, NJ has been a Green Sun Energy Services client since December of 2024. The charger went into the garage in February: a hardwired ChargePoint Level 2 unit rated 11.5 kW on a dedicated 60-amp circuit, within ten feet of the breaker box. The load calculation put the minimum service at 106 amps, comfortably inside the supply the house already had. Running that calculation before anything is ordered is what separates a charger that can simply be added from one that needs a service upgrade first – and where the figure comes out above what a panel can carry, a load manager holds the installation inside its limits rather than the whole job stalling. A permit was filed with the city and a utility rebate application submitted.
Project Facts
- Location
- Perth Amboy, NJ
- Service
- EV Charger Installation
- Client since
- December 2024
- Charger
- ChargePoint Model # CPH50-HARDWIRE-L23
- Charging port
- CCS (J1772)
- Circuit breaker
- 60 amp
- Charging stations
- 1
- Estimated range added per hour
- Estimated Range Per Hour: 36 mi / 58 km
EV charger questions from Perth Amboy homeowners
What should a Perth Amboy homeowner look for in an EV charger installer?
One that treats the charger, the car, the electrical service, the permit and any utility programme as a single system rather than fitting a 60-amp breaker because the charger will take one. That means the household's actual daily driving, what the vehicle's onboard charger accepts, the connector, the service rating, a proper load calculation, the capacity left in the panel, Article 625 and the manufacturer's installation instructions, the correct breaker and conductor sizes, hardwired or plug-in, indoor or outdoor, the municipal permit and final inspection, commissioning and network setup, whatever incentives are open at the time, off-peak charging, how it interacts with solar or back-up power if the house has either, and the second car that may arrive later. The question worth asking is which charging system gives the house the speed it actually needs without upgrading the service unnecessarily.
Can a ChargePoint Home Flex be set lower if the panel is full?
Yes -- that is the point of the adjustable output. A house that cannot carry 48-amp charging might run at 32 amps on a 40-amp circuit, or 24 amps on a 30-amp one, where the load calculation and the installation support it.
Why does the charger sit on a 60-amp breaker?
Because 48-amp charging is a continuous load, and the code requires the overcurrent protection for a continuous load to be sized at not less than 125 percent of it. Forty-eight amps multiplied by 1.25 is sixty. The breaker is not oversized; it is sized correctly for a load that runs for hours without pause.