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20KW 48VDC-380VAC Three-Phase Inverter - China Suppliers & Factory with Pure Sine Wave Output and High Efficiency

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20KW 48VDC-380VAC Three-Phase Inverter - China Suppliers & Factory with Pure Sine Wave Output and High Efficiency

Introducing our high-performance 48VDC-380VAC mains frequency inverter, designed to deliver a robust 20kW output. This product employs advanced mains frequency transformer isolation, ensuring a pure sine wave output with total harmonic distortion (THD) of 3% or less. With an impressive input voltage capability ranging from 42V to 100V, this inverter is engineered for versatility and reliability. It features an anti-interference design along with multiple protection functions, achieving an efficiency rating of 88% or higher. Ideal for industrial equipment and renewable energy systems, our inverter is manufactured in China, supplied directly from our factory, and perfect for various demanding applications. Choose our inverter for superior performance and dependability in your projects
  • DC input 48V
  • AC output Single phase,Split phase or 3 phase
  • Output power 20KW

Rated Output Power
20 kW
🔋
DC Input Voltage
48V DC
🔌
AC Output Voltage
380VAC (3-Phase)
📈
Efficiency
≥ 88%
🌊
Output Waveform
Pure Sine Wave
🛡️
Isolation
Low-Freq. Transformer
⚙️ Input & Output Characteristics
🔋 Input Characteristics

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.

🔌 Output Characteristics

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%.

🔧 Line-Frequency Transformer

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).

🚀 Advanced Features & Reliability
📉 Ultra-Low Voltage Input Capability

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.

📡 Anti-Interference Design

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.

🛡️ Multi-Layer Protection Mechanisms

Input over/under-voltage, output overload/short-circuit, overtemperature, fan failure, and lightning protection. Supports RS485/CAN communication interfaces for remote monitoring.

🏭 High Reliability & Durability

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.

📋 Technical Specifications — Model: BZP-20KW
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
Frequently Asked Questions
Q What is the input voltage range of the BZP-20KW inverter?
The BZP-20KW supports a rated DC input voltage of 48V with an ultra-wide input voltage range of 42V–100V (or customised range). This allows the unit to operate reliably even during deep battery discharge or fluctuating solar PV input conditions.
Q What type of AC output does the BZP-20KW provide?
The inverter outputs a pure sine wave at 380VAC (three-phase, 4-wire) or 220VAC (single-phase), with a selectable frequency of 50Hz or 60Hz. The total harmonic distortion (THD) is less than 3% under linear loads, making it suitable for sensitive equipment.
Q What kind of loads can the BZP-20KW drive?
Thanks to its low-frequency isolation transformer and robust overload capability (120% for 35 seconds), the BZP-20KW is well-suited for inductive loads such as motors, water pumps, compressors, and other industrial equipment. It supports automatic recovery after 10 seconds at 115% overload.
Q What protection features are built into the BZP-20KW?
The unit includes multi-layer protection covering input reverse polarity, under-voltage, over-voltage, output over-current, short-circuit, overtemperature, and fan failure. Note that short-circuit protection does not auto-recover — the machine must be manually restarted. Lightning protection is also included.
Q What are the operating environment requirements?
The BZP-20KW operates in temperatures ranging from -25°C to +55°C, at altitudes up to 2000m (derating required above this), and in relative humidity of 0–90% (non-condensing). It is rated IP20 for indoor use and produces noise levels of ≤50dB at 1 metre.
Q Does the BZP-20KW support remote monitoring or communication?
Yes. The BZP-20KW supports RS485 communication interface (optional) for remote monitoring and integration with energy management systems. It is also compatible with CAN bus interfaces, enabling real-time status reporting and fault diagnostics.

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