OEM EV Charge Levels Factories & Manufacturer

The fundamental distinction lies in where the AC-to-DC rectification occurs. In Level 2 charging, the EVSE supplies 208V–240V (North America) or 400V 3-phase (Europe/Asia) alternating current to the vehicle's internal On-Board Charger (OBC), which rectifies it into DC for the traction battery pack. Because the vehicle's internal OBC is constrained by weight, volume, and heat dissipation, power is typically restricted between 3.5kW and 22kW. In contrast, DC Fast Chargers (Level 3 & Level 4) house high-capacity stationary Silicon Carbide (SiC) or IGBT rectification modules inside the external charging cabinet, outputting high-voltage DC directly to the battery via contactors managed by the EV's Battery Management System (BMS), achieving outputs from 20kW up to 720kW.

Our power conversion modules leverage wide-bandgap Silicon Carbide (SiC) semiconductor switches that exhibit significantly lower conduction and switching losses compared to legacy silicon devices. Mechanically, our cabinets feature independent air-duct isolation: power electronics and sensitive PCB control modules reside in an IP65 sealed compartment, while heat sinks sit in an active airflow chamber driven by variable-speed EC centrifugal fans. For high-power applications (above 360kW) and liquid-cooled 500A/600A dispensers, we integrate closed-loop liquid-to-air cooling systems utilizing industrial ethylene glycol coolant, ensuring full-power operation without thermal derating up to +50°C ambient temperatures.

Yes. Our universal controller platform utilizes a modular Supply Equipment Communication Controller (SECC) architecture. By simply changing the communication daughterboard and physical cable assembly, the system adapts seamlessly between ISO 15118 / DIN 70121 (PLC over Control Pilot for CCS1, CCS2, and NACS / SAE J3400) and GB/T 27930 (isolated CAN bus communication for Chinese vehicles). Dual-gun cabinets can be configured with heterogeneous connector pairings (e.g., CCS2 + GB/T or CCS1 + NACS) to service mixed international commercial fleets and transitionary markets.

Every DC unit integrates comprehensive multi-stage grid defense mechanisms: Type II (optional Type I+II) surge protective devices (SPD) on both AC input and DC output stages, residual current monitoring (Type B RCD), active power factor correction (PFC > 0.99 at >50% load), total harmonic distortion suppression (THD < 5%), input over/under voltage protection, reverse polarity protection, output short-circuit protection with ultra-fast semiconductor fuses, and continuous insulation resistance monitoring. In the event of an isolation breakdown or ground fault, output contactors disconnect within 10 milliseconds.

Upgrading regional distribution transformers often requires 6 to 18 months of utility approvals and capital investments reaching hundreds of thousands of dollars. Our BESS integrated charging piles feature internal lithium iron phosphate (LFP) battery reserves paired with an internal bidirectional PCS (Power Conversion System). The battery charges at low power (e.g., 20kW–30kW) during off-peak windows or directly from rooftop solar arrays. When an EV requests ultra-fast charging, the battery and grid discharge simultaneously to deliver 120kW–180kW burst power to the vehicle, buffering the upstream grid from sudden demand spikes.

Yes. Our systems are natively compliant with OCPP 1.6 JSON (OCPP-J) and OCPP 2.0.1, including support for TLS 1.3 security profiles. They have completed formal plug-fest and cloud validation with top global charging network platforms such as AMPECO, Driivz, ChargeLab, and Greenflux. Remote configuration, smart load management schedules (ChargingProfiles), diagnostics, error logging, and Over-The-Air (OTA) firmware binaries can be triggered directly from the customer's central operational backend.

We provide a standard 24-month comprehensive factory warranty, extendable up to 5 years via enterprise service level agreements (SLA). Thanks to our modular internal design, components such as power conversion modules, HMI displays, contactors, and cable assemblies can be hot-swapped in the field within 15 minutes by local certified technicians. We maintain long-term inventory of critical core modules across 36 authorized regional sales and service hubs, guaranteeing fast courier dispatch worldwide.

For standard white-label orders with custom silkscreen logos and HMI branding, delivery typically takes 15 to 20 working days. Full ODM custom projects (involving proprietary enclosure sheet metal, custom tooling, bespoke PCB form factors, or regional certification submissions such as UL or Eichrecht) require 4 to 6 weeks for design and prototyping, followed by 30 to 45 days for pilot production and certification testing. Every batch is delivered with full Quality Control inspection reports, dielectric hipot test records, and factory acceptance test (FAT) documentation.