Yes, two wallboxes can run on one supply — the planning question is the combined draw. Two EV-ACT3204E units at full rate draw 32 A per phase each, so together they ask the supply for 64 A per phase, about 44 kW. Either the supply is sized for that combined load, or the usage is planned so the two never peak at once.
Key Takeaways
- Two EV-ACT3204E wallboxes at full rate draw 64 A per phase combined — about 44 kW, sustained for hours.
- Route one is capacity: a load calculation, a dedicated circuit per unit, a supply upgrade if the numbers require one.
- Route two is usage: staggered windows and rotation, with RFID access keeping it enforceable.
- Load sharing is not stated in this model’s listing — if your plan needs it, confirm it in writing first.
The Combined Load, in Numbers
Everything here is arithmetic on the unit’s stated input — 32 A per phase, about 22 kW. Two units on the same supply add line by line:
| Arrangement | Draw per phase | Combined power |
|---|---|---|
| One wallbox charging | 32 A | About 22 kW |
| Two wallboxes charging at full rate | 64 A | About 44 kW |
Two things drive the plan. First, charging is a continuous load: those amps flow for hours, so supply, protection and cabling are planned around the sustained figure, not a brief peak. Second, the worst case is both cars drawing at once — on a shared site, exactly what happens on busy evenings. Plan for the second row, or arrange that it never occurs.
Route One: Size the Supply for Both
The straightforward route is capacity. Your installer runs a load calculation for the property — our guide to load calculation basics for adding EV chargers to a building walks through it — and checks whether the supply and board can carry 64 A per phase of charging on top of everything else the building uses.
- Each wallbox gets its own dedicated circuit, designed for 32 A per phase continuous; the sizing of each belongs to the installer, as with a single unit.
- The supply is the ceiling. If the calculation says the supply cannot carry the pair plus the building’s other loads, the honest answers are a supply upgrade or Route Two — not a smaller breaker and a hope.
Route Two: Plan the Usage, Not Just the Wiring
If the supply cannot carry both at full rate, the second route is to make sure it never has to. It works because most pairs of cars do not need 22 kW at the same moment:
- Stagger the windows. One unit serves the early-evening arrivals, the other the overnight cars. A car parked for ten hours rarely needs its charge in the first two; when both arrive empty, they take turns rather than share.
- Control who starts a session. RFID and app access means a session starts with a card, not by anyone plugging in — on a shared site that keeps the plan enforceable (see our explainer on RFID and user management for shared chargers).
One caution. Automatic load sharing — two chargers dividing a capped supply and rebalancing as cars finish — is a real technique, explained in our guides to dynamic load balancing and whether load balancing increases charging speed. But this model’s listing does not state such a function. Do not design a site around a feature the spec sheet does not claim: if automatic sharing matters to your plan, get it confirmed in writing before the supply is designed around it.
The Wallboxes Behind the Plan
The EV-ACT3204PE is a 22 kW wallbox for three-phase supplies: 32 A per phase at 380–400 V, hardwired, tethered Type 2 cable, RFID and app control, IP66 housing, CE mark. A pair suits a two-bay property, a small workplace or a landlord’s two spaces — same unit, spares and card system on both bays. EVDANCE is a Shenzhen manufacturer founded in 2011; the model carries its 3-year standard warranty.
Frequently Asked Questions
Can both wallboxes run at full speed at the same time?
Only if the supply was sized for it — 64 A per phase of continuous load on top of the building’s other demand, which is the installer’s load calculation to make. Otherwise plan the usage: stagger or rotate.
Will two ACT3204E units automatically share a limited supply?
Not stated — treat it as a written-confirmation item with EVDANCE. Until confirmed, the plans are a supply sized for both, or a usage plan keeping the combined draw inside the supply.
Does each wallbox still need its own circuit?
Plan on it: each unit is a 32 A per phase continuous load, and installers design a dedicated circuit per wallbox, sized and protected for that unit.
Related Reading
- Adding EV Chargers to a Building: Load Calculation Basics
- What Is Dynamic Load Balancing, and Why Does Your Wallbox Home Charger Need It?
- Does Load Balancing Increase EV Charging Speed?
