Digital power module TH20GT7550C7-WT

for charging electric vehiclesDCAC

Product introduction
TH20GT7550C7-WT is a bidirectional AC/DC charging/discharging power module developed by Tonhe for vehicle-to-grid (V2G) applications. The module uses intelligent air-cooling and supports three-phase four-wire AC input (line voltage) with a rated output power of 20 kW. DC-side constant-power operation covers 500–750 VDC for charge and discharge. Module control and parameter configuration are managed via CAN bus communication with the main controller.

AC & DC specifications (summary)
AC Side
Voltage range: 323 VAC–456 VAC (three-phase four-wire)
Frequency: 50/60 Hz
Overvoltage protection: >456 VAC
Undervoltage protection: <323 VAC
Efficiency (AC → DC): ≥95%

DC Side
Rated output power: 20 kW
Voltage range: 200–750 VDC
Current range: 1–40 A
Constant power range: 500–750 VDC
Efficiency (DC → AC): ≥95%
Voltage regulation accuracy: ≤±0.5%
THD: ≤5%
Current regulation accuracy: ≤1%

Operating environment
Working temperature: -30℃ to 65℃
Relative humidity: ≤95% (no condensation)
Altitude: ≤2000 m (derating above 2000 m)

Product features

• Cooling method: Fan cooling (intelligent air cooling)
• Standby power consumption: <10 W
• Communication protocol: CAN (CAN bus)
• Address/parameter setting: Digital display and button operation
• Dimensions: 460 mm × 218 mm × 84 mm (D × W × H)
• Weight: ≤11 kg
• MTBF: 500,000 hours

Model / Brand / Code

• Model: TH20GT7550C7-WT
• Brand: Tonhe
• Code: 850440

Production & Test
Manufactured on automated SMT and assembly lines with solder paste inspection, wave-soldering, coating, aging test lines and full QA processes. Tonhe holds ISO9001 and IATF16949. Test center includes semi-anechoic EMC chamber and equipment such as power analyzers, climatic chambers and transient immunity testers. Products have CE/TUV and related certifications.

Packaging & Shipping (summary)
Small orders: express couriers (FedEx, DHL, UPS). Large shipments: sea or air in containers. Lead time for batches depends on quantity and customization.

Frequently asked technical points

• Communication: CAN, typical baud rate 125 kb/s, CAN voltage level 5 V.
• Potting: Series supports glue/potting on demand.
• Installation: Can be mounted horizontally, side-standing or upside-down (front-panel customization may be required for inverted installation).
• Lead time: Samples may be available; batch lead time depends on order size (example: ~35 days for large/custom orders).
• Payment terms: Standard factory terms; negotiable for long-term cooperation.
• Warranty: Standard 12 months from delivery receipt.

Characteristics / technical specifications

• Model No.: TH20GT7550C7-WT
• AC input: 323 VAC–456 VAC, 50/60 Hz (three-phase, 4-wire)
• DC output voltage range: 200–750 VDC
• DC current range: 1–40 A
• DC constant power range: 500–750 VDC
• Rated DC output power: 20 kW
• Efficiency (AC→DC, DC→AC): ≥95%
• Voltage regulation accuracy: ≤±0.5%
• THD: ≤5%
• Current regulation accuracy: ≤1%
• Cooling: Fan cooling
• Standby power: <10 W
• Communication: CAN (125 kb/s, 5 V)
• Interface: Digital display and buttons
• Dimensions: 460 × 218 × 84 mm (D × W × H)
• Weight: ≤11 kg
• MTBF: 500,000 hours
• Operating temp.: -30℃ to 65℃
• Humidity: ≤95% (no condensation)
• Altitude: ≤2000 m (derating above)