WallboxeM4 Single Extender
The Wallbox eM4 Single Extender is a EV charger with max. charging power (AC) 22 kW, phases 3 and connector Type 2 socket.1
Key figures
Rules in the UK
Home chargers sold in Great Britain must meet the smart charge point regulations (smart functionality, default off-peak charging).
Technical specifications
| General | |
|---|---|
| Connector | Socket (Type 2)1 |
| Number of outlets | 11 |
| Min. operating temperature | -25 °C1 |
| Performance | |
| Max. charging power (AC) | 22 kW1 |
| Electrical | |
| Phases | 31 |
| Max. current per phase | 32 A1 |
| Connectivity & smart | |
| Wi-Fi | Yes1 |
| Ethernet | Yes1 |
| 4G/LTE | No1 |
| RFID card reader | Yes1 |
| Dynamic load balancing | Yes1 |
| Safety & metering | |
| MID-certified meter | Yes1 |
| RCD protection | Type A1 |
| Built-in 6 mA DC leakage detection | Yes1 |
| IP rating | IP551 |
| IK rating | IK101 |
| Dimensions & weight | |
| Width | 306.5 mm1 |
| Height | 516 mm1 |
| Depth | 145 mm1 |
| Weight | 7.2 kg1 |
Variants1
The same model in several variants. The specifications above apply to all variants; this table shows what differs.
| Variant | Part number | Eichrecht compliant |
|---|---|---|
| Standard | 100000328 | No |
| Calibration law compliant | 100000454 | Yes |
| With shutter | 100000452 | No |
Manufacturer documentation
- Product page
- Datasheet / specifications — Wallbox eM4 Single / Twin – Technical Data Sheet – Wallbox_Datasheet_eM4_EN_b (04/25)
External links to Wallbox's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
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Frequently asked questions
What is the max. charging power (AC) of the Wallbox eM4 Single Extender?
The max. charging power (AC) of the Wallbox eM4 Single Extender is 22 kW.1
What is the phases of the Wallbox eM4 Single Extender?
The phases of the Wallbox eM4 Single Extender is 3.1
Which connector does the Wallbox eM4 Single Extender use?
The connector of the Wallbox eM4 Single Extender is Type 2 socket.1
Does the Wallbox eM4 Single Extender have dynamic load balancing?
Yes, the Wallbox eM4 Single Extender has dynamic load balancing.1
Sources
- Wallbox eM4 Single / Twin – Technical Data Sheet, Wallbox_Datasheet_eM4_EN_b (04/25) — Wall Box Chargers S.L. · accessed 27 Sept 2026