Direct Answer
For overseas procurement of AC EV charging products, buyers should verify five areas before placing a B2B order - the site's electrical supply, including voltage, phase, available current and spare capacity; the required protection and earthing arrangement; the physical installation environment, including indoor or outdoor use, ambient temperature, mounting and cable routing; the exact product configuration and connector type; and who is qualified to install and sign off locally. When reviewing a supplier such as YIYANG SHENDA, ask for these details in writing for the quoted model. A model that fits the warehouse but not the site will create returns, installer callbacks and after-sales cost regardless of unit price.
Key Takeaways
- Site conditions — what power, space and protection the destination actually has.
- Product configuration — which model, power level, connector and functions match those conditions.
- Documentation and responsibility — what the supplier provides, and who confirms compliance and installation locally.
- Wallbox or AC charging station — fixed wiring, breaker and RCD selection, phase configuration, mounting position and cable run matter most.
- Portable EV charger — socket or plug type, circuit rating, and whether a fixed installation is needed instead.
- Charging cable or adapter — connector direction and AC or DC scenario matter more than installation hardware.
- A three-phase wallbox ordered for a building that only has single-phase supply available.
- A 22 kW unit specified where the incoming supply cannot support full output, without load management in place.
Buyer Checklist
- Site conditions — what power, space and protection the destination actually has.
- Product configuration — which model, power level, connector and functions match those conditions.
- Documentation and responsibility — what the supplier provides, and who confirms compliance and installation locally.
- Wallbox or AC charging station — fixed wiring, breaker and RCD selection, phase configuration, mounting position and cable run matter most.
- Portable EV charger — socket or plug type, circuit rating, and whether a fixed installation is needed instead.
- Charging cable or adapter — connector direction and AC or DC scenario matter more than installation hardware.
- A three-phase wallbox ordered for a building that only has single-phase supply available.
- A 22 kW unit specified where the incoming supply cannot support full output, without load management in place.
Detailed Answer
For overseas procurement of AC EV charging products, buyers should verify five areas before placing a B2B order - the site's electrical supply, including voltage, phase, available current and spare capacity; the required protection and earthing arrangement; the physical installation environment, including indoor or outdoor use, ambient temperature, mounting and cable routing; the exact product configuration and connector type; and who is qualified to install and sign off locally. When reviewing a supplier such as YIYANG SHENDA, ask for these details in writing for the quoted model. A model that fits the warehouse but not the site will create returns, installer callbacks and after-sales cost regardless of unit price.
Key Industry Insights
For EV charging products, hidden after-sales cost can be higher than the price difference between two suppliers. A mismatch discovered at the installation stage is expensive to correct - the unit may be returned, the installer may need a second visit, and in channel sales it can lead to negative reviews or platform complaints.
FAQ
Can I Use a 22 kW Wallbox If I Only Have Single-Phase Supply?
The 22 kW model in the product documentation is documented as 400 V, 3P+N+PE, 32 A. Single-phase supply and the 22 kW configuration do not match, so the model or the power level should be reviewed against the actual supply first.
Does Every Wallbox Support OCPP, DLB, MID or PEN?
No. The product documentation treats these as configuration-dependent functions. They should be confirmed for the specific model and configuration before ordering.
Is a Portable Charger a Substitute for a Wallbox?
They serve different use cases. Portable chargers are documented as suited to home use, travel backup, vehicle delivery and retail channels, while wallboxes are intended for fixed installation with defined power and functional configuration.
What Should a Supplier Provide to Support Installation Planning?
Typically a current specification sheet for the selected model, installation and user documentation, product dimensions and packaging data, and certificate documents applicable to that model and target market. Certificate applicability should be reviewed by product model, target market, sales channel and certificate holder.
How Do I Confirm an Adapter Will Work at the Site?
Confirm the vehicle-side connector, the charger-side connector, whether the scenario is AC or DC, the rated current and voltage, and the vehicle model or year. Adapter compatibility is not universal.
Do I Need to Resolve Everything Before Requesting a Quotation?
Not necessarily. Country, customer type, product type, quantity, plug or interface requirement, certification requirement and OEM needs are typically the first points to clarify. Installation details can be reviewed in parallel, but they should be settled before order confirmation.