What is EVSE?
EVSE is equipment that connects an electric vehicle to a power source for charging. EVSE stands for electric vehicle supply equipment. It includes the connection point, controls and protective features that manage the flow of electricity to the vehicle. You may hear it called an EV charging station.
Quick Facts About EVSE
- Category
- Electric vehicle charging equipment
- Used for
- Supplying power to an electric vehicle
- Common confusion
- The vehicle's onboard charger
- Also called
- Electric Vehicle Supply Equipment, EV charging station
- Often discussed with
- EV Charger Installation, Dedicated Circuit Installation
Key Takeaways About EVSE
- The vehicle's onboard charger converts incoming AC power for the battery.
- EVSE is available in portable and mounted designs.
- A charging cable alone isn't necessarily a complete EVSE unit.
How EVSE Works
EVSE communicates with the vehicle before it allows power to flow. The connection tells the vehicle how much current the equipment can supply. The vehicle then draws power within that limit. Related service: EV Charger Installation.
Related glossary terms: Branch Circuit, Breaker Panel, Electrical Load.
During AC charging, the vehicle's onboard charger converts the incoming power into a form the battery can use. The EVSE manages the connection, but it doesn't perform that conversion. That's why the wall-mounted unit and the vehicle's charger have different jobs.
EVSE also monitors the connection while the vehicle charges. If the equipment detects a ground fault, it can stop the flow of power. Charging ends when the vehicle stops drawing power or the driver disconnects the plug.
From the Earth Electric team
When we plan an EV charger installation, we check the home's electrical capacity against the equipment's needs. We also look at the route from the panel to the parking area. That route helps us plan where the wiring and charging unit will go.
EVSE in Practice: A Real-World Example
A Miami homeowner wants a wall-mounted EVSE unit near a garage parking space. The installation plan includes a wiring route from the electrical panel to the unit.
Related Terms
Branch Circuit
A branch circuit is an electrical circuit that runs from the final circuit breaker or fuse to the outlets or equipment it supplies.
Breaker Panel
A breaker panel is an electrical enclosure that distributes power to circuits in a building.
Electrical Load
An electrical load is the demand for electrical power placed on a circuit or electrical system by connected equipment.
Load Calculation
A load calculation is an estimate of the electrical power a building or selected equipment needs.
Earth Electric
Have Questions About EVSE?
Contact Earth Electric for practical guidance on EVSE and related 24 hour electrician work in Miami.