400kW Integrated DC Dual-Gun Charging Pile for Heavy-Duty Trucks

① Structural Features

Adopts a heavy-duty commercial vehicle-specific integrated design, integrating dual high-power independent power modules, intelligent dual-gun control units, cooling systems, and high-durability high-power charging guns into one unit. The main body is constructed with high-strength section steel, offering excellent impact resistance and vibration resistance, with a robust structure and superior sealing performance. Both charging interfaces comply with GB/T 18487.1 and GB/T 20234.3 national standards, equipped with locking devices and IP54-rated waterproof and dustproof sealed connectors. The cooling system employs independent dual-air-duct forced air cooling, equipped with industrial-grade high-efficiency silent fans to precisely control the temperature of power modules and charging gun cables, meeting the high-power continuous charging requirements of heavy-duty trucks.

② Performance Parameters

Total rated power: 400kW, supporting flexible power distribution between dual guns (single gun max 400kW /, dual guns 200kW+200kW).

Input voltage: 380V±20%; Input frequency: 50Hz.

Output voltage range: 200V-1000V; Single-gun output current: continuously adjustable from 0A to 300A.

DC charging efficiency: ≥96%; Power factor: ≥0.99 (at full load); Standby power consumption: ≤15W.

Operating noise: ≤65 dB (measured 1 meter from the device).

Operating ambient temperature: -20℃~50℃; Relative humidity: ≤95% (no condensation).

Certified by authoritative bodies such as CQC; Default protection rating: IP54.

① Integration & Commissioning

Power modules, dual-gun control units, and fan cooling systems are assembled in accordance with heavy-duty industrial equipment production standards. The complete unit undergoes multiple rigorous tests including input-output full-load testing, dual-gun synchronous charging testing, extreme environment simulation testing, and safety performance testing. Preloaded with heavy-duty truck-specific charging control programs, it supports automatic identification of charging protocols and heavy-duty truck Battery Management Systems (BMS), enabling remote upgrades and intelligent fault diagnosis.

② Protection Treatment

The outer shell undergoes pickling, phosphating, and electrostatic spraying processes, with multiple layers of sealing strips installed at key joints to provide excellent dustproof, waterproof, anti-corrosion, and anti-salt spray performance. Internal wiring uses flame-retardant cables and waterproof connectors. Core components are equipped with independent protective enclosures. High-voltage and low-voltage areas are physically isolated with additional insulation protection panels to enhance electrical safety protection in heavy-duty scenarios.

Power & Voltage: Based on the 400kW total rated power, customized versions of 320kW, 360kW, and 480kW are available. The output voltage range can be extended to 200V-1500V, compatible with new energy heavy-duty truck models of different voltage levels.

Function Expansion: Optional features include 4G/Ethernet modules, GPS positioning, voice prompts, V2G (Vehicle-to-Grid) bidirectional charging, exclusive billing management systems for heavy-duty truck fleets, password recognition charging, pre-charging functionality, and remote monitoring cameras.

Appearance & Configuration: Supports custom body colors, corporate logo, and operation logo printing. The default charging cable length is 8 meters, with customizable lengths from 6 to 15 meters. Optional independent indicator lights for each charging gun and heavy-duty cable storage devices are available.