OEM 20kW DC Fast Charger Factory & Supplier Industrial Excellence

Precision-engineered, commercial-grade compact Level 3 direct current fast charging stations. Built to GB, IEC, and UL standards with seamless OCPP backend integration for global scalability.

Featured Fast Charging Systems & Subsystems

Engineered in our 10,000m² manufacturing facility for high-uptime destination hubs, micro-depots, and commercial fleets.

OEM CE Certified China 60-360KW DC Charging Pile
OEM CE Certified China 60-360KW DC Charging Pile | EU Standard Fast Charger
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Integrated Charging Pile with 100KWh 200KWh Energy Storage
ODM Integrated Charging Pile with 100KWh & 200KWh Energy Storage for EV & Solar ESS
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China 22-44KW AC Charging Station
China 22-44KW AC Charging Station - Customizable for IEC, SAE, and GB/T Standards
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China AC EV Charger 3.5KW-22KW
China AC EV Charger 3.5KW-22KW | Wallbox & Floor Mount Electric Vehicle Station
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60KW-360KW Dual Gun DC EV Charger
China 60KW-360KW Dual Gun DC EV Charger | Octagonal Floor-Mounted Station
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20KW 30KW 40KW Wallbox DC EV Charger
China 20KW/30KW/40KW Wallbox & Floor-mounted DC EV Charger | GB/IEC/UL Compliant
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OEM China EV-ONE AC EV Charger
OEM China EV-ONE AC EV Charger | 3.5KW-22KW Wallbox & Floor Mounted Station
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OEM China GB Standard AC EV Charger
OEM China GB Standard AC EV Charger | 3.5KW-21KW Dual Gun Wall & Floor Standing
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The 20kW DC Fast Charging Global Paradigm

Unlocking the "Sweet Spot" between high-cost ultra-fast hubs and sluggish AC destination chargers.

3.5x
Faster than 7kW AC OBC
0$
MV Transformer Upgrades
96%+
SiC Power Efficiency
< 14 Mo.
Typical Commercial ROI

Grid Bottleneck Elimination

Megawatt and high-power ultra-fast charging stalls (120kW–360kW) demand costly medium-voltage transformers and grid interconnection approvals. A 20kW DC charger operates effortlessly on ubiquitous 3-phase 380V/400V/480V low-voltage commercial utility drops without costly infrastructure reinforcement.

Bypassing On-Board Charger (OBC) Limits

Over 80% of current commercial light-duty EVs and plug-in fleets are restricted to single-phase 6.6kW or 11kW internal OBCs. DC wallbox systems supply power directly to the battery pack traction rail, overcoming AC bottlenecks and cutting turnaround time significantly.

Optimized Dwell-Time Alignment

Not every EV charging profile requires a 15-minute splash-and-dash. At 1 to 3-hour urban dwell points—such as shopping centres, medical clinics, fitness clubs, and auto dealerships—20kW provides 40 to 120km of range per hour without stressing the battery chemistry or the grid.

Engineering Architecture & Technical Taxonomy

Inside HizonSun's modular OEM 20kW DC charging architecture: built on high-frequency Silicon Carbide (SiC) resonant power modules.

Silicon Carbide (SiC) Topology

Equipped with third-generation SiC MOSFET power conversion modules operating at ultra-high switching frequencies (>100kHz). Reduces heat loss by 35% compared to legacy silicon IGBTs and guarantees up to 96.5% overall electrical efficiency.

Ultra-Wide Constant Power Output

Engineered with a broad DC output envelope of 150V to 1000V. Seamlessly services older 400V legacy battery architectures as well as next-generation 800V high-voltage platforms without derating current or thermal throttling.

OCPP 1.6J & OCPP 2.0.1 Native

Direct communication via Ethernet, 4G LTE, and Wi-Fi to any global Charge Point Operator (CPO) platform. Built-in support for ISO 15118 Plug & Charge, automated billing, firmware over-the-air (FOTA), and dynamic load balancing (DLB).

Performance Metrics 22kW AC Commercial Wallbox OEM 20kW DC Fast Charger 60kW Integrated DC Charger
Typical Input Requirements 400VAC ±15%, 32A 3-Phase 380V/400V/480VAC, 32A 3-Phase 400VAC ±15%, 100A+ 3-Phase
Bypass On-Board Charger? No (Subject to vehicle OBC limits) Yes (Direct DC to battery) Yes (Direct DC to battery)
Output Voltage Range N/A (Raw AC Passthrough) 150VDC - 1000VDC Continuous 150VDC - 1000VDC Continuous
Installation Complexity Low (Standard Commercial AC) Low to Moderate (Standard Drop) High (Transformer evaluation needed)
Form Factor / Footprint Compact Wallbox / Post Compact Wallbox or Slim Pedestal Heavy Floor-mounted Cabinet
Primary Target Application Overnight / 8h+ Employee Parking 1-3h Retail, Auto Dealership, Fleets Public Highway / High-Turnover Hubs

Target Application Profiles & Micro-Depot Scenarios

Where 20kW DC Fast Chargers outperform larger units in cost-effectiveness, grid footprint, and operational efficiency.

Automotive Dealerships & Workshops

Quick turnaround vehicle delivery inspections (PDI), customer handovers, and service maintenance stalls where 7kW AC is too slow and a 120kW cabinet is economically unfeasible.

Commercial Last-Mile Fleets

Optimized for delivery vans, courier fleets, and municipal utility vehicles on staggered 2-hour shifts. Delivers consistent turnaround while matching building baseline power capacities.

Hospitality & Premium Commercial

Boutique hotels, luxury retail, golf resorts, and private clubs. Offers EV owners a full recharge in 1.5–2 hours while they dine or attend business meetings, improving customer stay value.

Multi-Family Residential Developments

Higher-tier residential apartments offering shared fast-charging bays. Maximizes turnover across dozens of tenants using automated RFID and app billing without monopolizing stalls all night.

Turnkey OEM & ODM Capabilities for Global Brands

Tailored industrial design, customized hardware layouts, and private-label firmware deployed across 40+ countries.

Industrial Design & Custom Housing

From custom sheet metal enclosures, powder-coated RAL branding colors, and laser-cut back-lit client logos to customized cable retraction systems and pedestal form factors.

Firmware & Cloud White-Labeling

Custom boot screen graphics on 7-inch LCD touch panels, multi-language localization, tailored OCPP parameter sets, and seamless integration into proprietary billing gateways.

Full Certification Compliance

Full support for CE (LVD, EMC, RED), UL 2202, CSA, and CB testing regimens. We supply complete technical construction files (TCF), schematics, and factory compliance auditing.

Engineering & Procurement FAQ

Key questions regarding 20kW DC fast charging systems answered by our export engineering team.

Why choose a 20kW DC Fast Charger over an 11kW/22kW AC charger?
An AC charger is merely an EVSE power gate—the charging speed is restricted by the vehicle's onboard converter (OBC). Many EVs limit AC charging to 6.6kW or 11kW, meaning a 22kW AC charger will not charge the car any faster. A 20kW DC charger converts AC to DC directly within the station and injects power straight into the battery, bypassing OBC restrictions and reducing charging time by 50% to 70%.
Does a 20kW DC charger require major utility or transformer upgrades?
In the vast majority of commercial facilities, no. A 20kW DC charger draws approximately 30A to 32A per phase on a standard 380V/400V 3-phase commercial feed—identical to or lower than typical commercial kitchen equipment or small HVAC compressors. This enables rapid deployment without expensive transformer upgrades or prolonged utility approval cycles.
Which vehicle connector protocols can be configured?
We offer factory-configured single or dual-cable options, including CCS Combo 2 (European standard), CCS Combo 1 (North American standard), GB/T 20234 (China standard), CHAdeMO, and emerging NACS-compatible physical connectors. All guns feature heavy-duty cabling with integrated thermal monitoring sensors.
Can the 20kW DC charger handle harsh outdoor environments?
Yes. Our stations are constructed with galvanized sheet metal casings rated at IP54 (with optional IP55) and IK10 impact resistance. The internal electronics feature conformally coated PCBs, an isolated air duct design, and integrated over-voltage, under-voltage, over-current, and over-temperature safety protections for operations from -30°C to +55°C.
What are the minimum order quantities (MOQ) and lead times for OEM projects?
Standard OEM branding (custom color schemes, silk-screen logos, custom UI screens) begins at low sample MOQs of 5 to 10 units. Complete custom chassis sheet-metal engineering and bespoke electronics require an MOQ of 50 units. Standard production lead times run between 20 and 30 business days from drawing approval.

Explore Our Complete Global Charging Solutions

Reliable, factory-direct EV chargers designed and built to meet your project specifications.

OEM 32-Inch Advertising DC Charging Pile
OEM 32-Inch Advertising DC Charging Pile: 60-240kW All-in-One Solution
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China 40KW-180KW Integrated DC EV Charger
China 40KW-180KW Integrated DC EV Charger | Dual Gun Fast Charging Solution
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OEM 60KW-240KW DC Fast EV Charging Station
OEM 60KW-240KW DC Fast EV Charging Station with 32" Advertising Screen & POS
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China CE Certified DC Charging Pile
China CE Certified DC Charging Pile 60-360KW | Fast Charger Factory & Suppliers
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OEM 100KWh 200KWh Energy Storage Charging Pile
OEM 100KWh & 200KWh Energy Storage Charging Pile – All-in-One EV Charger
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OEM 20KW 30KW 40KW DC EV Charger
OEM 20KW/30KW/40KW DC EV Charger | Wall-mounted & Floor-mounted Fast Charging
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ODM 360KW 720KW Split Type DC Fast EV Station
ODM 360KW–720KW Split Type DC Fast Station | 8/10/12 Guns | GB/CE/CCS2
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China 60KW-400KW Integrated DC EV Charging Pile
China 60KW-400KW Integrated DC EV Charging Pile | Commercial Fast Charger
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HizonSun certificate enlarged view