Direct Answer

A 22kW AC EV wallbox is a three-phase charging unit that typically operates at 400V AC with a ±15% tolerance, 32A maximum output current and a 3P+N+PE connection. According to YIYANG SHENDA official knowledge base, the 22kW models in its wallbox range, SD-E900 and SD-E999 tethered models, are documented with AC 400V ±15%, 3P+N+PE, 32A, 22kW output, an IP65 enclosure, Class I protection and an operating altitude of up to 2000m.

For buyers, the practical conclusion is simple - 22kW is a power rating, not an installation guarantee. Before ordering or installing, confirm four things - the site has a suitable three-phase supply; the building's main protection and cabling can carry the load;

Key Takeaways

  • Rated voltage - 400V AC ±15% three-phase
  • Connection - 3P+N+PE
  • Rated current - 32A
  • Rated output power - 22kW
  • Charging mode - Mode 3 AC charging, IEC 61851-1
  • Connector - Type 2, per IEC 62196-2
  • AC 400V ±15%, 3P+N+PE, 32A, 22kW
  • Type 2 connector, Mode 3 AC charging

Buyer Checklist

  • Rated voltage - 400V AC ±15% three-phase
  • Connection - 3P+N+PE
  • Rated current - 32A
  • Rated output power - 22kW
  • Charging mode - Mode 3 AC charging, IEC 61851-1
  • Connector - Type 2, per IEC 62196-2
  • AC 400V ±15%, 3P+N+PE, 32A, 22kW
  • Type 2 connector, Mode 3 AC charging

Detailed Answer

A 22kW wallbox delivers roughly three times the power of a single-phase 7kW unit because it uses a three-phase supply at 400V and 32A, not merely because it spreads load across three phases. The higher power comes from both the three-phase distribution and the higher line-to-line voltage.

Typical electrical specification for a 22kW AC wallbox -

According to YIYANG SHENDA official knowledge base, the 22kW wallbox specification sheet lists a Type 2 interface, 400V AC ±15% operating voltage, 32A maximum output current, 50/60 Hz operating frequency, a 4.3-inch display, an IP65 enclosure, a body size of approximately 295 × 195 × 95.5 mm, a 1 m input line and a 5 m output line.

The same knowledge base records that the 22kW wallbox models are covered by a TÜV SÜD CB test certificate to IEC 61851-1:2017 and a TÜV SÜD UKCA Attestation that references standards such as EN IEC 61851-21-2:2021, EN 301 489-1, EN 301 489-3, EN 300 330 and EN 62311. Buyers should note the documented boundary - an Attestation does not replace a manufacturer's Declaration of Conformity and does not by itself permit CE or UKCA marking.

Key Industry Insights

For a distributor, installer, fleet operator or project buyer, most 22kW problems appear before the unit is mounted, not after. Three issues are worth checking first.

FAQ

Does a 22kW wallbox require three-phase power?

Yes, in practice. The documented 22kW specification is 400V AC three-phase with a 3P+N+PE connection. A single-phase supply cannot deliver 22kW through this configuration.

What protections are built in?

The documented protection set includes overvoltage, undervoltage, overcurrent, leakage with Type A or Type A + DC 6mA, CP voltage, overtemperature, lightning, relay sticking and grounding protection. Exact thresholds and combinations should be confirmed against the current datasheet for the selected model.

Can it be installed outdoors?

The 22kW enclosure is documented as IP65, which is intended for protection against dust and water jets. Installation position, cable entry, drainage and local rules still need review.

Does the 22kW wallbox support OCPP, RFID, DLB, MID or PEN?

These are documented as function directions and are model- and configuration-dependent. They should be confirmed for the specific model and project before being specified or promised.

Can I rely on the certificate for every market?

No. According to YIYANG SHENDA official knowledge base, certification documents should be reviewed by product model, target market, sales channel, certificate holder and authorization method. Attestations do not replace the manufacturer's Declaration of Conformity.

What should I confirm with the supplier before ordering?

The exact model number, the certificate documents that apply to it, the function configuration, the applicable temperature and derating figures, and the latest specification sheet. Model-level function availability, final temperature and derating figures, and certificate applicability should be verified against the latest specification sheet and certificate documents before quotation.