
DC Charging Cabinet
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What Is a DC Charging Cabinet
A DC charging cabinet is a centralized power distribution unit that houses multiple DC charging modules, serving as the backbone for large-scale EV charging stations. Unlike standalone chargers with built-in power electronics, a DC charging cabinet separates the power conversion and management system from the physical dispensers (charging posts) that drivers interact with.
This modular architecture allows a single DC charging cabinet to power multiple charging dispensers simultaneously, dynamically allocating power between them based on real-time demand. As a result, a DC charging cabinet enables higher total system efficiency, lower installation costs per charging point, and scalable capacity expansion for fleet depots, highway charging hubs, and urban supercharging stations.

Key Features of DC Charging Cabinet
Modular Power Distribution
DC charging cabinet houses multiple hot-swappable power modules, allowing stations to scale output from 60kW to over 600kW.
Dynamic Load Balancing
DC charging cabinet intelligently distributes available power across connected dispensers, prioritizing vehicles with lower state of charge.
Centralized Thermal Management
DC charging cabinet features integrated liquid or forced-air cooling systems for optimal power module temperature control.
Multiple Dispenser Support
DC charging cabinet can power 2 to 12 individual charging dispensers from a single cabinet installation.
OCPP Smart Grid Integration
DC charging cabinet supports OCPP 1.6J and 2.0.1 for remote monitoring, power scheduling, and demand response programs.
Compact Space-Saving Design
DC charging cabinet centralizes power electronics, reducing footprint compared to multiple standalone chargers.
Parameter of DC Charging Cabinet
| Feature | Specification |
|---|---|
| Total Power Output | 60kW - 600kW+ (Scalable) |
| Number of Dispensers | 2 to 12 units per cabinet |
| Voltage Range | 150V - 1000V DC |
| Max Current per Dispenser | 250A / 500A / 600A |
| Power Module Type | Hot-Swappable, N+1 Redundancy |
| Cooling System | Liquid-Cooled / Forced Air |
| Communication | Ethernet / 4G / 5G / OCPP |
| Input Voltage | 3-Phase 380V / 480V AC (±15%) |
| Protection Rating | IP54 (Cabinet) |
| Operating Temp | -30°C to +55°C |
Scale Your EV Infrastructure with High-Efficiency Charging Solutions
Why Choose Mekel's DC Charging Cabinet
Lower Cost Per Charging Point
DC charging cabinet centralizes power electronics, reducing per-dispenser hardware and installation costs by up to 30%.
Scalable for Future Expansion
DC charging cabinet allows operators to start with 60kW and add power modules over time as demand grows.
Higher System Efficiency
DC charging cabinet achieves ≥95% efficiency through centralized power conversion and intelligent load management.
Simplified Maintenance
DC charging cabinet features hot-swappable modules, allowing failed units to be replaced without taking the entire station offline.
Application
Mekel’s DC Charging Cabinets are versatile and engineered for high-traffic environments:

Highway Supercharging Hubs
DC charging cabinet powers multiple 350kW dispensers simultaneously, enabling high-traffic highway stations with minimal grid connection points.

Electric Bus and Truck Depots
DC charging cabinet with 600kW+ total output supports overnight and opportunity charging for heavy-duty electric fleets.

Urban Public Charging Plazas
DC charging cabinet enables a single grid connection to power 6-12 dispensers, reducing civil works and installation costs.
FAQ
What is the difference between a DC charging cabinet and a standalone charger?
A DC charging cabinet centralizes power electronics for multiple dispensers, while a standalone charger has all components built into a single unit.
How many dispensers can a DC charging cabinet support?
A DC charging cabinet typically supports 2 to 12 dispensers, depending on total power capacity and module configuration.
Can I add more power modules to a DC charging cabinet later?
Yes, DC charging cabinet features modular design, allowing operators to add power modules as fleet size or demand increases.
Does DC charging cabinet support V2G applications?
Yes, DC charging cabinet with bidirectional power modules can support vehicle-to-grid (V2G) functionality.
What maintenance does a DC charging cabinet require?
DC charging cabinet requires periodic filter cleaning, thermal system inspection, and hot-swappable module replacement when faults occur.




