Only cars with a 22 kW three-phase onboard charger can use the EV-ACT3204PE‘s full 22 kW — and they are the minority. Most cars accept 11 kW of AC power, or about 7 kW if they charge on a single phase, and on this wallbox each of those cars simply charges at its own rate. That is what makes a 22 kW wallbox a sensible buy for a mixed household: the fast car gets its speed, and every other car is still served at the fastest rate it can accept.
Key Takeaways
- Only a car with a 22 kW three-phase onboard charger uses this wallbox’s full rate — most cars take 11 kW or about 7 kW.
- Every car gets its own ceiling: the wallbox holds nobody back and pushes nobody further.
- In a mixed garage, the cable-or-socket variant and RFID/app records matter as much as the kilowatts.
- In a mixed home, the wallbox’s job is to give every car its own fastest rate — the rest is the household’s queue.
The Wallbox Is Constant; the Car Decides
On AC charging the wallbox supplies the power and the car converts it. The converter inside the car — the onboard charger — is the ceiling for every session, as our explainer on single-phase vs three-phase charging sets out. So read the table below from your own car’s specification. If your car’s AC rating is 11 kW, an 11 kW session is what you will see on this wallbox tonight, next year, and on any 22 kW wallbox anywhere. The time figures are worked examples with about 10% allowed for losses, not promises.
| Your car’s AC rating (check its specification) | Session on the EV-ACT3204PE | Adding 40 kWh takes about |
|---|---|---|
| 22 kW, three-phase | 22 kW | 2 hours |
| 11 kW, three-phase | 11 kW | 4 hours |
| About 7 kW, single-phase | About 7 kW | 6 hours |
Notice what the table does not contain: anyone being held back. Every car gets its own ceiling. Our timing comparison for 7 kW, 11 kW and 22 kW charging works the same arithmetic across battery sizes.
Cable or Socket: the Variant Choice in a Mixed Garage
The EV-ACT3204PE comes as a Type 2 cable version or a socket version, and in a two-car home that choice is practical, not cosmetic. The tethered cable lives on the unit: walk up, unhook, plug in — the fastest routine for the car that charges every night. The socket version lets each car use its own cable, which suits a household whose cars differ: a single-phase car arriving with its own single-phase cable still gets its roughly 7 kW, and each car’s cable stays with that car. Our guide to tethered vs socketed wallboxes works through the trade-off in full.
RFID and App When Two Drivers Share One Wallbox
The wallbox offers RFID and app control. In a shared garage that is what keeps sessions separate: a card starts a session for the driver holding it, and the app view shows what each session used, instead of one anonymous household total. For a household that splits running costs — or a small workplace where the same unit serves staff cars with different ratings — that record matters more than the headline kilowatts.
The Overnight Queue: Two Cars, One Connector
One connector means the cars charge in turn, so the household routine does the organising. The car that needs a fast turnaround — typically the one rated for the higher power — takes the early-evening slot. The slower car takes the deep-night hours, where its roughly 7 or 11 kW still finishes a large top-up before morning, as the table above shows. Nobody waits on anybody: each session runs at that car’s own ceiling, and by the time the second car starts, the wallbox is free.
Frequently Asked Questions
Will a 22 kW wallbox damage a car rated for less?
No. The car requests what its onboard charger can convert and the wallbox supplies that. A 7 kW car on this wallbox charges at about 7 kW, exactly as it would anywhere else.
Can both of our cars charge at the same time?
No — the EV-ACT3204E has one Type 2 connection, so cars take turns. In practice an overnight queue is rarely a problem: even the slower car in the table above finishes a large top-up inside a night.
My car is single-phase. Is this wallbox pointless for me?
For speed alone, today, mostly — you would see about 7 kW. It earns its place if a second or future car can use three-phase power, or if the RFID and app record-keeping suits how your household runs the garage.
Related Reading
- Single-Phase vs Three-Phase EV Charging: 7kW, 11kW and 22kW Explained
- How Long Does It Take to Charge an EV at 7 kW, 11 kW and 22 kW?
- Tethered vs Socketed Wallbox Chargers: Which Should You Install?
- 11 kW vs 22 kW Wallbox: Which Should Distributors Stock for Europe?
