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MP-SG4400UD-725

MP-SG4400UD-725

Modular Inverter

The China Moneypro SG4400UD-20 is engineered for high-efficiency, reliable, and cost-effective PV power generation. With 1500Vdc system optimization, it delivers stable performance under high temperatures, ensuring maximum energy yield for utility-scale solar installations.

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Elevate Large-Scale Solar Performance

The China Moneypro SG4400UD-20 is engineered for high-efficiency, reliable, and cost-effective PV power generation. With 1500Vdc system optimization, it delivers stable performance under high temperatures, ensuring maximum energy yield for utility-scale solar installations.

Exceptional Energy Output

Cutting-Edge Three-Level Technology

  • Three-level inverter design achieves up to 99% efficiency.

  • Enhanced cooling system allows full power operation at 52??C, maintaining consistent output.

Benefits:

  • Captures more energy from PV arrays

  • Reliable operation in hot climates

  • Maximizes project ROI

Intelligent Operation & Maintenance

Smart Monitoring for Minimal Downtime

  • Integrated zone monitoring provides real-time online analysis and fault detection.

  • Modular structure enables fast, easy maintenance.

Advantages:

  • Rapid fault identification and resolution

  • Reduced O&M costs

  • Minimized operational interruption

Cost-Effective Installation

Streamlined Deployment

  • Outdoor-ready design lowers transportation and installation complexity.

  • Compatible with DC 1500V systems for reduced system cost.

  • Optional Q-at-night function improves energy efficiency during low-light periods.

Advanced Grid Support

Seamless Utility Integration

  • Compliant with IEC 61727 and IEC 62116 standards.

  • Supports Low/High Voltage Ride Through (L/HVRT).

  • Provides active and reactive power control with controlled ramp rates.

Benefits:

  • Ensures stable grid connection

  • Meets international compliance requirements

  • Supports advanced utility grid management

Why Choose China Moneypro SG4400UD-20?

  • Proven Reliability: 1500Vdc outdoor design for stable operation

  • Maximized Efficiency: Three-level technology for optimal energy output

  • Compliance Assured: Meets global grid codes

  • Lower Costs: Simplifies transportation and installation

  • Easy Maintenance: Modular and smart monitoring system

Key Specifications

  • Max PV Input Voltage: 1500 V

  • AC Output Power: 4400 kVA

  • Nominal AC Voltage: 660 V

  • Maximum Efficiency: 99%

Typical Applications

  • Utility-Scale PV Plants: Reduce total system cost while maximizing yield

  • Grid Integration: Supports reactive power dispatch and voltage regulation

  • High-Temperature Environments: Reliable operation in harsh climates

FAQ ?C Common Questions

Q1: How does SG4400UD-20 maximize energy output?
Through three-level inverter technology and enhanced cooling, it ensures maximum energy capture even at high temperatures.

Q2: How is maintenance simplified?
Its modular design and zone monitoring allow quick fault detection and fast maintenance.

Q3: Can it handle voltage fluctuations?
Yes, supports L/HVRT and active/reactive power control, maintaining grid stability.

Q4: Is this inverter suitable for outdoor use?
Absolutely. The outdoor-ready design reduces installation complexity and costs.

Q5: Does it save energy during nighttime or low-sun periods?
Yes. Optional Q-at-night function improves efficiency during low-light conditions.

Specifications

Type designation SG4400UD-20
Input (DC)
Max. PV input voltage 1500 V
Min. PV input voltage / Startup input voltage 938 V / 950 V
MPP voltage range 938 V – 1500 V
No. of independent MPP inputs 4
No. of DC inputs 20 ( optional: 28 )
Max. PV input current 4 * 1435 A
Max. DC short-circuit current 4 * 3528 A
PV array confguration Negative grounding or foating
Output (AC)

AC output power

 4400 kVA @ 52 ℃, 5280 kVA @ 23℃
Max. AC output current 4 * 1155 A
Nominal AC voltage 660 V
AC voltage range 561 V – 726 V
Nominal grid frequency / Grid frequency range 50 Hz / 45 Hz – 55 Hz, 60 Hz / 55 Hz – 65 Hz
Harmonic (THD) < 1.5 % ( at nominal power )
Power factor at nominal power / Adjustable power factor > 0.99 / 0.8 leading – 0.8 lagging
Feed-in phases / AC connection 3 / 3
Effciency
Max. effciency / European effciency 99.0 % / 98.7 %
Protection & Function
DC input protection Load break switch + fuse
AC output protection Circuit breaker
Surge protection DC Type II / AC Type II
Grid monitoring / Ground fault monitoring Yes / Yes
Insulation monitoring Yes
Surge protection Yes
Q at night function Optional
General data
Dimensions (W*H*D) 2900 mm * 2300 mm * 1550 mm
Weight 3.3 T
Topology Transformerless
Degree of protection IP65
Night power consumption < 200 W
Auxiliary power supply Optional: 5 kVA – 40kVA
Operating ambient temperature range * -35 ℃ – 60 ℃
Allowable relative humidity range 0 % – 100 %
Cooling method Temperature controlled forced air cooling
Max. operating altitude 4000 m ( > 2000 m derating)
Display LED Indicators, Ethernet+WebHMI
Communication Standard: RS485, Ethernet
Compliance CE, IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683

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