Home Charger Installation Protocol: 7kW to 22kW & Dual-Gun Systems (US/EU)
⚠️ HIGH VOLTAGE & LOAD WARNING
Installing 14kW (Dual Gun) or 22kW stations requires significant grid capacity.
Do not install without a "Load Calculation" by a certified electrician. Overloading your main panel can cause immediate blackout or fire hazards.
Installing a ChargePapa Station (7kW - 22kW) is a precision engineering task. Below is the standard protocol for both single-unit and high-power dual-unit installations.
Phase 1: Grid Capacity Check (Crucial)
Before buying copper wire, check your property's total available power.
For High Power (14kW / 22kW) Users:
- 22kW (3-Phase): Requires 32A per phase. Ensure your home has at least a 63A or 80A 3-phase main connection.
- 14kW (Dual Gun): Often draws 60A-64A Single Phase (US) or 2x 32A. Requires a dedicated 200A service panel in most residential settings.
- Breaker: Dedicated dual-pole (US) or 4-pole (EU) breaker required. Must be rated 25% higher than the charger's output (e.g., 40A breaker for 32A load).
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Recommended Wire Gauge (Copper):
Power US Spec (AWG) EU Spec (mm²) 7kW (32A) 8 AWG 6 mm² 11kW (16A 3-Ph) - 2.5 mm² - 4 mm² 22kW / 14kW 6 AWG / 4 AWG 10 mm²
Phase 2: Mounting the Heavy-Duty Backplate
- Wall Strength: For Dual-Gun units (often 10kg+), ensure you are drilling into solid brick, concrete, or a wooden stud. Drywall alone will not hold.
- Level the metal backplate and secure with M6 expansion bolts.
- Ensure airflow clearance of at least 20cm around the unit for cooling.
Phase 3: Wiring Connection (High Power)
🇺🇸 North America (14kW/19kW)
Hardwire 240V (High Amp)
- L1: Black (Thick Gauge)
- L2: Red (Thick Gauge)
- Ground: Green
*Check torque settings! High amps cause heat expansion.
🇪🇺 Europe (11kW/22kW)
3-Phase TN-S System
- L1, L2, L3: Grey/Black/Brown
- N (Neutral): Blue
- PE (Earth): Yellow/Green
*For 22kW, ensure all 3 phases are live and balanced.
Phase 4: Load Balancing & Activation
- Dynamic Load Balancing (DLB): If your ChargePapa unit came with CT Clamps, install them at the main meter to prevent grid overload.
- Flip the breaker ON.
- Check the LED status light:
- 🟢 Solid Green: Standby (Ready).
- 🔴 Red Flash: Wiring Fault (Check Grounding).
- Test with your EV.
Need a Professional Installer?
For >11kW systems, professional installation is mandatory for warranty validity.
*Disclaimer: ChargePapa is not affiliated with these third-party platforms. They are suggested as industry-standard resources only.
🇪🇺 Installing a European-Standard (Type 2) Station?
For EU/AU sites running on Type 2 (IEC 62196-2) infrastructure, the ChargePapa MRS-EJ is the sheet metal commercial-grade wallbox built for single-phase 7kW and three-phase 11kW–22kW installations. TÜV & CB certified · IP54 · RFID + WiFi + Bluetooth · Dual RCD (Type A + Type B).
Need the detailed wiring diagram for 22kW models?
Request 22kW Tech Sheet via Email