Three-phase charging with a mobile connection

The NRG Charge Velox 22kW 4G is the highest-output connected model in the four-unit launch range. It combines an untethered Type 2 socket with up to 32A per phase on a suitable 400V three-phase supply, then adds 4G alongside Wi-Fi and LAN connectivity.

This combination is intended for projects where both higher-rate AC charging and an alternative to the local site network matter. It may suit a workplace, fleet bay, hospitality site or shared parking location where a mobile connection simplifies the communications plan. The project still needs confirmed mobile coverage and clear SIM/data terms; the `4G` label does not by itself define the service.

Start with the vehicles and dwell pattern

Before choosing 22kW, identify the vehicles that will use the bay and how long they normally remain parked. The charger can offer up to 22kW AC only when the site and vehicle support it. A car with a 7kW or 11kW onboard AC charger will use no more than that vehicle limit.

Higher-output AC charging is most valuable when compatible vehicles need meaningful energy during a shorter stay. For overnight parking or a fleet dominated by lower-rate vehicles, a 7kW installation may achieve the required operational result with a different supply design.

Use 4G for a defined communications reason

The 4G version still supports local network options; it is not a mobile-only charger. A project may use wired LAN where structured cabling is available, Wi-Fi where coverage and management are suitable, or 4G where the mobile route is preferred. Bluetooth is documented for configuration.

Ask four questions before specifying the mobile model:

• Is there reliable signal at the exact charger location?
• Who supplies and activates the SIM or data service?
• What period or allowance is included, and what renewal terms apply?
• What happens to remote functions if the mobile service is interrupted?

These answers should be present in the quotation and handover pack. They are more useful than a generic promise that the charger is always connected.

Three grid sensors reflect the three-phase design

NRG states that the 22kW unit is supplied with three current sensors. In a correctly designed arrangement, they provide phase-level information for dynamic load control. This helps the charging load respond to the site's available capacity rather than taking maximum output regardless of other demand.

The designer must establish how the sensors communicate, where they are fitted, how phases are identified and what limit is configured. Sites with multiple chargers or other managed loads may need a broader control design; do not infer a complete multi-charger solution from the three supplied sensors alone.

Socketed charging for shared and changing users

The Type 2 outlet lets drivers connect their own compatible cable. For a workplace or shared bay, this avoids leaving one lead attached permanently and allows a damaged vehicle cable to be replaced separately from the charger. It also means the cable brought to the bay must support the intended charging arrangement.

For full three-phase use, check that the vehicle and cable are suitable for the required phases and current. Bay position, inlet location and pedestrian routes determine the safe length. LAMPS can supply EV charging cables once the project requirement is defined.

Choose access control around the site

RFID, app and plug-and-charge modes are documented across the Velox family. Two RFID key fobs are listed with the charger, giving a straightforward route for known users. Plug-and-charge may suit a physically controlled bay. App mode supports the available remote and schedule functions.

A site requiring public payment, detailed user billing or third-party back-office reporting needs a separate service decision. Obtain written confirmation of platform compatibility, commissioning, support and ongoing cost before offering those functions to drivers.

Solar and RS485 functions need clarification at 22kW

NRG literature describes optional solar monitoring with an additional current sensor. However, the 22kW installation page also states that PV and an RS485 dynamic-load function cannot be used together on the device. This creates a model-specific design question that must be resolved before simultaneous solar and advanced load-management operation is sold.

The safest purchasing position is to treat solar as a project option subject to NRG approval of the exact control arrangement. The three supplied grid sensors should not be counted as the separate solar sensor, and battery-storage interaction should not be assumed.

Four alternative fascias for a Black charger

The charger unit is Black as standard. Anthracite Grey, Pure White, Sapphire Blue and Sage Green covers are stocked as separate accessories. This allows a site to change the visible finish without creating four extra 22kW 4G electrical products in the catalogue.

Choose the accessory through the Velox fascia product. A cover does not include the charger, socket, electronics, current sensors or connectivity hardware.

Compact modular hardware for project staging

At 255 x 180 x 105mm, the enclosure is compact for a three-phase wall unit. The passive backbox, main sealed body and fascia are separate components. This can help a contractor organise first-fix wiring and final equipment installation, particularly where electronics should not be left on site during early works.

The installer remains responsible for environmental suitability, mounting, supply and circuit design, protection, earthing, cable entry, sensor wiring, network setup, testing and handover. IP54 and IK10 ratings do not remove the need to choose an appropriate position and follow the current instructions.

Specification

Items documented with the 22kW 4G unit

• Velox backbox, 22kW 4G charger body and Black fascia
• Three grid current sensors for the three-phase arrangement
• Two RFID key-fob tags
• Current manufacturer installation components and documents

The vehicle cable and additional PV sensor are separate. Confirm the 4G service, final identifiers and current packaging before the unit is allocated to an installation.

Documents and support

• NRG Charge Velox datasheet (PDF)
• NRG Charge Velox installation manual (PDF)
• NRG Charge Velox configuration quick-start guide (PDF)

Use the manufacturer documents for product planning and commissioning. Electrical installation instructions are intended for qualified personnel.

Compare the connected Velox range

Compare the Velox 22kW standard model where Wi-Fi or LAN meets the brief, or use the NRG Charge range page for all four combinations. Read the Velox buyer's guide for a decision route based on supply, vehicle limit, network and access. For wider site equipment, browse commercial EV chargers.

Common questions

What is the difference between the 22kW standard and 4G models?

Both are three-phase socketed chargers. The 4G model adds a mobile-network connection alongside Wi-Fi and LAN. Confirm coverage and service terms before choosing it.

Will a 22kW charger make every car charge at 22kW?

No. The actual rate cannot exceed the vehicle's onboard AC limit or the capacity made available by the installation and load-management settings.

Are three current sensors included?

NRG's 22kW documentation states that three grid current sensors are supplied. Their correct use depends on the site design and commissioning.

Can this unit be used without 4G?

The 4G model also lists Wi-Fi and LAN. The project should define its preferred communications route and the role of mobile connectivity during commissioning.

Does the 22kW 4G unit support an alternative fascia?

Yes, subject to final compatibility confirmation. LAMPS plans to stock Anthracite Grey, Pure White, Sapphire Blue and Sage Green Velox cover plates separately.