The 400kW multi-gun modular AC-DC fast charger targets public parking hubs and retail destinations, where uptime and quick service access decide revenue. With CCS2 and CCS1 outlets, a 200V-1000V DC window and OCPP 1.6J connectivity, it delivers predictable high-power charging while keeping installation and commissioning simple. This DC fast charging station pairs high utilisation with low maintenance overhead.

1. Modular AC-DC Power Topology and Conversion Chain A single controller supervises rectification, isolation and metering, which keeps the power path short and trims conversion losses across the whole load range. Efficiency peaks at 96 percent and stays above 94 percent from light load to full output, cutting energy cost for high-utilisation sites. Input power factor stays above 0.99 and the wide input window keeps operation stable on weak rural feeders and long industrial spurs. Busbar layout, magnetic components and cooling channels are shared across the 400kW family, which shortens lead times and simplifies spare part stocking. Bidirectional-ready bus design lets the same platform accept solar or battery energy storage input without a second conversion stage. Matching power modules are documented in the datasheet.

2. 200V-1000V Wide Voltage Output With Constant Power Cable assemblies rated 250A to 400A are matched to each outlet, and CCS2 and CCS1 leads are available in lengths from 4 to 8 metres. Wide range voltage tracking keeps efficiency above 95 percent even when a deeply depleted pack pulls close to the 500A current ceiling. Output spans 200V to 1000V DC, covering 400V and 800V vehicle architectures from compact city cars to heavy-duty tractors. Continuous insulation monitoring isolates the outlet whenever leakage approaches the configured threshold, protecting technicians and vehicles alike. Voltage and current limits are negotiated over the control pilot, then confirmed by the battery management system before the DC contactors close.

3. 40kW Hot-Swap Power Modules and N+1 Redundancy Speed-controlled fans and intelligent airflow keep acoustic noise near 65 dB, which suits residential, hospital and retail locations. Replacement modules ship pre-calibrated, and the controller recognises a new unit automatically once it is fully seated. Power is delivered by 40kW hot-swappable modules, so a failed unit is exchanged in minutes without isolating the whole cabinet. Module-level diagnostics flag degrading fans and capacitors long before they cause a stoppage, enabling condition-based maintenance. N plus one redundancy keeps rated 400kW available even while one module is pulled for service, which matters on revenue-critical corridors. Commissioning takes under an hour with the guided setup wizard. Compatible EV charging connectors are listed separately.

4. Dynamic Power Allocation Across Dual Outlets Matrix switching allows any module to serve any gun, so one cabinet can run a single 500A session or two lower-current sessions. Operators set allocation rules per site, per connector or per tariff window through the cloud portal, with no on-site reprogramming. Because capacity follows demand, the DC fast charging station avoids the idle-outlet penalty that drags down utilisation on paired connectors. Session logs record delivered energy per outlet, which simplifies billing, reconciliation and fleet cost allocation. Priority rules can reserve one outlet for emergency fleets while the other follows a normal queue, all configured remotely. Site rules are tuned from the operator portal.

5. Outdoor IP55 Enclosure Built for Public Sites Front and side service access is available, and the base frame accepts either anchor bolts or a concrete plinth. The enclosure is rated IP55, with filtered intake louvres and a sealed electronics compartment that shrugs off rain, dust and washdown. Ambient range runs from minus 30 to plus 55 degrees Celsius, with internal heaters protecting the 7-inch display in freezing conditions. A powder-coated steel body with anti-corrosion treatment suits coastal, industrial and roadside installations. The bonded anti-glare touchscreen stays readable in direct sunlight and remains responsive through gloved operation. Optional heating, ventilation and lighting kits extend operation to cold storage yards and dusty mining roads. Installation drawings cover plinth and cable routing.

6. Smart Payment, OCPP Management and Energy Integration Communication runs over OCPP 1.6J, so the station integrates with almost any back office without custom middleware. Every session produces a metered record covering start, stop and energy delivered, mapping directly to the operator’s billing engine. Local storage keeps sessions running if connectivity drops, then synchronises records once the link returns. An open API and Modbus TCP option let the DC fast charger link with solar, storage and building management systems. Remote diagnostics, firmware updates and tariff changes are pushed over the air, cutting truck rolls for routine maintenance. The controller exposes smart charging profiles, so a central system can cap site load during peak tariff periods. Backend integration follows the OCPP specification.

Deployment Support and Accessories

Projects usually pair the cabinet with Type 2 to Type 2 cables and a OCPP protocol controllers, all supplied from one factory. Engineering teams can review the company profile before order, while commercial questions go through the contact our team page. Standard builds ship in four to six weeks, and documentation covers wiring, grounding and network setup.

Frequently Asked Questions

How is maintenance handled when a power module fails?

Modules are hot-swappable from the front. A technician isolates the affected unit, slides it out and seats a pre-calibrated replacement while the second outlet keeps serving traffic. N plus one redundancy keeps rated output available throughout.

Does the station support solar and battery storage integration?

The DC bus is storage-ready. Solar MPPT or a BESS cabinet can feed the link directly, and the controller can cap grid import during peak tariffs. This suits microgrid and carport projects where demand charges dominate operating cost.

What payment options are available for public drivers?

RFID card, mobile app, QR code, ISO 15118 plug and charge and an optional POS terminal for contactless bank cards. All methods write to the same metered session record, so reconciliation stays simple. Connector options are listed on our EV charging connector page.

What output voltage range does the 400kW unit support?

The charger delivers 200V to 1000V DC at up to 500A, so it serves 400V passenger cars and 800V heavy vehicles from the same outlet. Constant power holds 400kW from about 500V upward, which shortens charging time on modern high-voltage packs.

How does DCDC architecture differ from a conventional AC-DC charger?

A DCDC stage accepts a DC bus from solar or battery storage and converts it directly, skipping one rectification step. That raises round-trip efficiency and lets the modular AC-DC platform operate during grid outages when paired with a BESS cabinet.

Can the two guns charge at the same time at full power?

Yes, with dynamic allocation. Total capacity is shared, so one vehicle can take the full 400kW, or two vehicles can split it according to state of charge. Matrix switching means any module can serve either outlet, and rules are configured remotely.

As a commercial DC fast charger, the platform is specified for operators who need predictable uptime from a DC fast charging station.

Fleet managers comparing a DC fast charging station against split systems value the single-cabinet service model of this DC fast charger.

The DC fast charging station ships with commissioning support, and every DC fast charger is backed by regional spares.

Choosing a DC fast charger with documented test reports keeps procurement audits simple for any commercial EV charger project.