20KW 48VDC-380VAC Three-Phase Inverter - China Suppliers & Factory with Pure Sine Wave Output and High Efficiency
Rated DC input voltage of 48V, supporting an ultra-wide voltage range (e.g., 42V–100V or customised range), capable of adapting to extremely low voltage scenarios as low as 42V, ensuring stable output even under battery under-voltage conditions.
Rated output power 20kW, output voltage 380VAC (three-phase), frequency adjustable 50Hz/60Hz, pure sine wave output (THD ≤3% for linear loads), dynamic response time ≤50ms, power factor ≥0.99, efficiency ≥88%.
Utilises a line-frequency isolation transformer to achieve complete AC/DC isolation, effectively suppressing harmonic interference and enhancing system surge resistance. Supports inductive loads such as motors and water pumps (e.g., automatic recovery after 10 seconds at 115% overload).
Through wide voltage input design (e.g., 42V–100V) and intelligent boost technology, it ensures full power output even during deep battery discharge or fluctuating PV input, preventing shutdowns caused by insufficient voltage.
Electromagnetic Compatibility (EMC) Design: Shielded enclosure and optimised grounding, certified to CE (EMC/LVD) standards, meeting industrial-grade anti-interference requirements.
Dynamic Current-Loop Control with SVPWM Algorithm: Reduces switching noise and suppresses harmonic distortion to ensure pristine output waveforms.
Input over/under-voltage, output overload/short-circuit, overtemperature, fan failure, and lightning protection. Supports RS485/CAN communication interfaces for remote monitoring.
Utilises IPM smart modules (e.g., Mitsubishi 6th generation IPM) and power frequency topology, supporting operation across -25°C to 50°C with altitudes ≤3000m (derating required). Service life extends to 15 years. Modular design facilitates maintenance.
| Model | BZP-20KW | |||
| Isolation Mode | Low Frequency Transformer | |||
| DC Input | Rated Voltage (Vdc) | 48V | ||
| Rated Current (A) | 416A | |||
| AC Output | Rated Output Power | 20KW | ||
| Output Waveform | Pure Sine Wave | |||
| Rated Voltage | 220V ±3% | 380VAC ±3% | ||
| Phases | Single Phase | 3 Phase 4 Wire | ||
| Rated Current (A) | 90.9A | 30A (phase current) | ||
| Frequency | 50Hz or 60Hz | |||
| Power Factor (PF) | 0.9 | |||
| Overload Ability | 120%, 35 seconds | |||
| Efficiency | >88% | |||
| Waveform Distortion Rate (THD) | <3% (Linear Load) | |||
| Dynamic Response (0 to 100% Load) | 5%, ≤50ms | |||
| Display | LCD | |||
| Running Mode | Working Continuously | |||
| Electrical Insulation Properties | 2000Vac, 1 Minute | |||
| Communication Interface (Optional) | RS485 | |||
| Protection Function | Protection | Input reverse polarity, under voltage, overvoltage, output over-current, short circuit, overheating etc. | ||
| Cooling Method | Fan-Cooled | |||
| Short-Circuit Protection | No automatic recovery, need to restart the machine | |||
| Working Environment | Noise (1 Meter) | ≤50dB | ||
| Degree of Protection | IP20 (Indoor) | |||
| Working Altitude (m) | ≤2000 | |||
| Working Temperature | -25 ~ +55℃ | |||
| Relative Humidity | 0~90%, Non-Condensing | |||
| Mechanical Dimension | Depth × Width × Height | 550 × 550 × 860 mm | ||
| Weight (Kg) | 186 Kg | 210 Kg | ||


