The 280kW dual-gun modular AC-DC fast charger targets bus depots and logistics yards, where uptime and quick service access decide revenue. With CCS2 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 Efficiency peaks at 96 percent and stays above 94 percent from light load to full output, cutting energy cost for high-utilisation sites. An active front end feeds isolated DC/DC stages inside each cabinet, so grid harmonics stay low while output voltage follows whatever the battery management system requests. Input power factor stays above 0.99 and the wide input window keeps operation stable on weak rural feeders and long industrial spurs. Every cabinet is load tested before shipment and arrives with a wiring map covering contactors, fuses and surge arrestors for fast commissioning. Power conversion is separated from control logic, so firmware updates and diagnostics never interrupt an active charging session. Matching power modules are documented in the datasheet.

2. 200V-1000V Wide Voltage Output With Constant Power Precision metering at the outlet delivers Class B accuracy, so billed energy matches what the vehicle actually receives. Pre-charge sequencing limits inrush current, shielding vehicle contactors and DC link capacitors from stress during every plug-in. Output spans 200V to 1000V DC, covering 400V and 800V vehicle architectures from compact city cars to heavy-duty tractors. A 1000V ceiling future-proofs the investment, because the same DC fast charging station serves today’s 400V fleets and tomorrow’s 800V platforms. Voltage and current limits are negotiated over the control pilot, then confirmed by the battery management system before the DC contactors close.

3. 30kW Hot-Swap Power Modules and N+1 Redundancy Each module reports voltage, current, temperature and fan speed to the controller, which derates or isolates any unit drifting out of tolerance. Power is delivered by 30kW 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. Replacement modules ship pre-calibrated, and the controller recognises a new unit automatically once it is fully seated. Thermal design holds junction temperatures stable at 50 degrees ambient, so the DC fast charger sustains rated output in hot climates. Compatible EV charging connectors are listed separately.

4. Dynamic Power Allocation Across Dual Outlets Scheduling profiles prioritise buses in the morning and light vehicles in the evening without manual intervention. Session logs record delivered energy per outlet, which simplifies billing, reconciliation and fleet cost allocation. Load balancing also watches site demand, trimming total draw when the transformer or building load approaches its limit. Dynamic power allocation distributes available capacity across outlets in real time, letting a single vehicle draw the full 280kW. Operators set allocation rules per site, per connector or per tariff window through the cloud portal, with no on-site reprogramming. When a second connector activates, the controller splits output according to state of charge rather than a fixed schedule. Site rules are tuned from the operator portal.

5. Outdoor IP55 Enclosure Built for Public Sites Surge protection, residual current detection and emergency stop are integrated, and the cabinet is engineered for a ten-year outdoor service life. Each unit is ingress tested at the factory and ships with CE documentation covering insulation and earth continuity checks. A powder-coated steel body with anti-corrosion treatment suits coastal, industrial and roadside installations. Cable management hooks keep CCS2 leads off the ground, extending connector life in busy public car parks. The bonded anti-glare touchscreen stays readable in direct sunlight and remains responsive through gloved operation. Ambient range runs from minus 30 to plus 55 degrees Celsius, with internal heaters protecting the 7-inch display in freezing conditions. 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. OCPP 1.6J adds certificate handling and stronger message security for public networks that must satisfy national roaming rules. The controller exposes smart charging profiles, so a central system can cap site load during peak tariff periods. Drivers authenticate by RFID card, mobile app, QR code or ISO 15118 plug and charge, with an optional POS terminal for bank card payment. Multi-language interface, configurable tariff screens and branded start pages help operators monetise the charging session itself. Local storage keeps sessions running if connectivity drops, then synchronises records once the link returns. 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

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 280kW unit support?

The charger delivers 200V to 1000V DC at up to 400A, so it serves 400V passenger cars and 800V heavy vehicles from the same outlet. Constant power holds 280kW 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 280kW, 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.

Which OCPP version should an operator choose?

OCPP 1.6J covers the widest installed base of back offices today. OCPP 1.6J is specified here for certificate handling, plug and charge support and stronger message security. Both profiles work with standard roaming hubs, and the protocol controller datasheet explains the mapping.

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.

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