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Smart AC wallbox

ChargeFlow

A 7, 11 or 22 kW wallbox that charges your car from your own roof. With the EnergyPilot local controller it follows the solar surplus through the day and keeps the home under the main-fuse limit.

VC-W7KVC-W11KVC-W22KKS socket · KC cable
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ChargeFlow EV charger wallbox: VC-W7K, VC-W11K, VC-W22K, KS socket · KC cableChargeChargeFlow
ChargeFlow EV charger wallbox: VC-W7K, VC-W11K, VC-W22K, KS socket · KC cable
7 / 11 / 22 kWWallbox ratings
6–32 AAdjustable in 1 A steps
4 modesManual, Smart, Schedule, AI
IP65 · IK08Outdoor-rated
Highlights

Part of a small home energy system.

  • Solar-first charging

    Charging follows your solar; grid and battery top up only what is missing.

  • Dynamic load balancing

    Backs off when the oven or heat pump starts, then rises again.

  • Battery top-up

    PowerCube or SolarHub adds power on a small supply.

  • Bluetooth remote

    Your phone controls the wallbox over Bluetooth, even without internet.

Smart charging needs the EnergyPilot local controller (VDG-EM-1 or VDG-EM-3) at the grid connection; one EnergyPilot controls one charger. Battery top-up also needs PowerCube or SolarHub storage.

Dynamic load balancing

A 7 kW charger on a 9 kW supply. No supply upgrade for the charger.

EnergyPilot measures the whole house at the grid connection. When the oven, hob or heat pump starts, ChargeFlow lowers its charging current so the total stays under the main-fuse limit, and raises it again as soon as there is room.

Without load balancing at full power, the first large appliance trips the main breaker: the oven at 17:58. The whole home goes dark until someone resets it; with the oven still on it trips again at 18:18, and after two trips the owner gives up and stops charging.

036912kW17:0018:0019:0020:0021:0022:0023:00Oven & hobDishwasherHeat pump1Home without power · 15 min2Home without power · 15 min1⚡ 17:58 Trip 12⚡ 18:18 Trip 2Charging stopped by the ownerHousehold limit, e.g. 9 kW single-phase
Home loadEV chargingHousehold limit 9 kWOver the limit
17:54Home 3.3 kWCar 7.0 kWTotal 10.3 kWMove over the chart to see the values.
Breaker trips2×
Home without power30 min
Charged by 23:005.6 kWh

Full-power case: a slight overload does not trip a breaker straight away; when the oven or heat pump starts the overload is large and it trips within a few minutes. After each trip the home is dark for about 15 minutes until it is reset. Illustration with a single-phase 7 kW ChargeFlow and an example household limit of 9 kW; without load balancing the charger is set to 9 A to leave room for the evening peak. Load balancing needs the EnergyPilot local controller at the grid connection; one EnergyPilot controls one charger. Below the 6 A minimum (about 1.4 kW single-phase) charging pauses until there is room again. Some older vehicles do not accept current adjustment.

Charging that follows the sun

More of your own solar in the car.

EnergyPilot measures solar, home load and grid power at the grid connection and sets the charging current continuously. Charging starts or stops only after conditions have been stable for 30 seconds, so a passing cloud does not interrupt it.

Solar first: charging power follows the sun. When solar falls short, the 6 A minimum is held and the battery, then the grid, make up the difference, so passing clouds do not interrupt charging.

0246810kW06:0008:0010:0012:0014:0016:0018:0020:00Car plugged inCharger maximum 7 kW
Solar outputHome loadCar from solarCar from batteryCar from gridSurplus solar into the battery
16:30Solar 2.7 kWHome 0.4 kWCar 2.3 kW2.30.00.0Move over the chart to see the values.
Solar into the car42.6 kWh
From the battery2.2 kWh
From the grid1.3 kWh
Solar share92%

Illustrative single-phase example: about 9.5 kW peak solar, 7 kW wallbox, car plugged in 07:30–19:00, the same energy in both cases. In Smart mode the battery is empty in the morning, so the grid tops up; at midday the solar the car cannot take is stored in the battery, which tops up the car in the evening. Actual values depend on the system, the weather and the vehicle.

Charging modes

Four ways to charge, chosen in the app.

Pick a mode to see where the energy comes from.

ChargeFlow · Smart

Solar first✓
Target current32 A
Battery top-up

When solar is below the target, the battery and then the grid make up the rest (minimum 6 A).

Smart

Solar first. When solar is not enough, grid power and the battery make up the difference.

Best for Everyday charging with as much of your own solar as possible.

Solar 2 kWGrid 3 kWBattery 2 kW

Example: late afternoon, solar is down to 2 kW and the grid supply is 3 kW. The battery adds 2 kW, so the car still charges at 7 kW. Single-phase; depends on the battery configuration, its state of charge and the charger model.

NeedsEnergyPilotPowerCube or SolarHub (optional, for battery top-up)

Illustration on a sunny day; home load not shown. In Smart mode the battery tops up first, then the grid. App screens are mock-ups.

Modes are those shown in the VIP Cloud app and may be refined with software updates. Available functions depend on the market.

Bluetooth remote

Your phone becomes the remote, even offline.

In local mode the VIP Cloud app connects to the wallbox over Bluetooth. Start and stop charging, change the current and check the session right next to the car, without Wi-Fi or mobile data. Online, VIP Cloud adds remote access, history and OCPP connection to charging-management platforms.

  • Set-up over Bluetooth and Wi-Fi in the VIP Cloud app
  • Start automatically on plug-in, from the app or over Bluetooth; RFID card on request
  • LED light bar shows the charging status
BluetoothNo internet

ChargeFlow

3.7kWCharging
Charging current
16 A
ChargeFlow wallboxCharging · 16 A

Try it: tap the buttons on the phone.

Two versions

Socket or tethered cable.

Type 2 socket with shutter
VC-W7KS · W11KS · W22KS

Type 2 socket with shutter

For drivers who use their own charging cable.

Tethered Type 2 cable, 5 m
VC-W7KC · W11KC · W22KC

Tethered Type 2 cable, 5 m

The cable stays on the wallbox, ready to plug in.

Where it fits

Carport, garage or garden wall.

Under the solar carport
Carport

Under the solar carport

On the house wall
Wall

On the house wall

Outdoors, all year
Garden

Outdoors, all year

IP65 and IK08 housing

Specifications

ChargeFlow wallbox

ModelVC-W7KS / KCVC-W11KS / KCVC-W22KS / KC
Nominal charging power7 kW11 kW22 kW
Grid typeSingle-phase, L / N / PEThree-phase, 3L / N / PEThree-phase, 3L / N / PE
Rated input voltage220–240 V380–415 V380–415 V
Max. charging current32 A16 A32 A
Current adjustmentFrom 6 A to the maximum, in 1 A steps
Frequency50 / 60 Hz
Vehicle connectorKS: Type 2 socket with shutter · KC: tethered Type 2, 5 m
Charging modesManual, Smart, Schedule, AI
Dynamic load balancing / OCPPSupported, needs EnergyPilot / via VIP Cloud
AuthenticationApp, Bluetooth; RFID card on request
ProtectionOver / under voltage, overcurrent, over-temperature, surge, residual current, earth fault, PEN fault, tamper detection
Ingress / impact protectionIP65 / IK08
CoolingNatural convection, no fan
Operating / storage temperature−30 to 50 °C / −40 to 70 °C
Relative humidity / altitude0–95%, non-condensing / up to 2,000 m
Communication / displayWi-Fi, Bluetooth / LED light bar, VIP Cloud app
  1. Installation by a qualified electrician on a dedicated circuit with the protective devices required by local wiring rules.
  2. The minimum charging current is 6 A per phase, about 1.4 kW single-phase or 4.1 kW three-phase. Some older vehicles do not accept current adjustment.

A single plug-in unit up to 800 W (such as SolarCore VM800WE-P2 or SolarKit) and PowerCube VA800D may be connected by the owner where local rules allow; where national rules permit higher plug-in limits, SolarCore P4 can also be connected by plug. Other SolarCore systems on an AC trunk cable, PowerCube VA2000D and above, VB5000D packs, SolarHub, ChargeFlow and EnergyPilot are installed by a qualified electrician.

Warranty & documents

Covered, and documented.

2years

2-year limited warranty (Europe)

  • Your statutory rights are not affected.
See warranty periods

Datasheet values are typical lab values and are not warranted values.

PDFChargeFlow datasheetSpecifications, PDFEULimited WarrantyEurope · warranty periodsALLDownload centreCertificates, guides and manuals
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