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Buy CROWN Micro VOLTMORE VMGI-4KW-SP 4KW single-phase on-grid solar inverter with dual MPPT, 98.3% efficiency, 600V PV input, IP65 protection and Wi-Fi/4G monitoring.
The CROWN Micro VOLTMORE VMGI-4KW-SP is a high-efficiency 4KW single-phase on-grid solar inverter designed for residential, commercial, and small-scale solar power systems. It uses MPPT technology to efficiently convert solar energy into grid-compatible electricity.
The VMGI-4KW-SP supports a 600V maximum PV input voltage, 80V–560V MPPT operating range, and up to 98.3% maximum efficiency. With IP65 protection, built-in protection functions, LCD touch-pad display, and optional Wi-Fi/4G monitoring, it is a practical solution for grid-connected solar installations.
Important model note: For the single-phase version, the correct model designation is VMGI-4KW-SP. The VMGI-4KW without “-SP” belongs to CROWN’s separate three-phase VOLTMORE range.
| Specification | Details |
|---|---|
| Brand | CROWN Micro |
| Series | VOLTMORE |
| Model | VMGI-4KW-SP |
| Inverter Type | Single-Phase On-Grid |
| Rated Power | 4000W / 4000VA |
| Maximum AC Apparent Power | 4400VA |
| Maximum DC Voltage | 600V |
| Start-Up Voltage | 120V |
| MPPT Voltage Range | 80–560V DC |
| Number of MPPT | 2 |
| Strings per MPPT | 1 |
| Max. Input Current per MPPT | 15A |
| Max. Short-Circuit Current per MPPT | 18A |
| Nominal AC Voltage | 230V L-N |
| Grid Frequency | 50/60Hz ±5Hz |
| Maximum Output Current | 19A |
| Power Factor | 0.8 Leading – 0.8 Lagging |
| THDI | <3% |
| Maximum Efficiency | 98.3% |
| Euro Efficiency | 97.9% |
| Cooling | Natural Convection |
| Protection Rating | IP65 |
| Topology | Transformerless |
| Communication | RS485 / Wi-Fi / 4G |
| Display | LCD / Touch Pad |
| Operating Temperature | -25°C to +60°C |
| Maximum Operating Altitude | 4000m |
| Maximum Humidity | 100%, non-condensing |
| AC Output Terminal | Quick Connector |
The official catalogue provides the 4KW model’s specific ratings and places it within the VMGI-3.6KW-SP to VMGI-8KW-SP single-phase range.
The CROWN Micro VOLTMORE VMGI-4KW-SP includes multiple protection functions for safer grid-connected solar operation:
The catalogue specifies Type III DC SPD and Type III AC SPD for this single-phase VOLTMORE range.
The CROWN Micro VOLTMORE VMGI-4KW-SP is suitable for:
CROWN’s single-phase VMGI models are also relevant to Bangladesh’s net-metering market; SREDA currently lists several Crown VMGI-SP models, including the 5KW, 6KW and 8KW versions, as approved single-phase solar inverters.
With up to 98.3% maximum efficiency, the VMGI-4KW-SP is designed to minimize conversion losses and make better use of available solar energy.
The inverter has two MPPT trackers, helping optimize solar energy production from separate PV strings.
Its 80V–560V MPPT operating range provides flexibility when designing a residential or small commercial solar PV array.
The IP65-rated enclosure provides protection against dust and water, making the inverter suitable for appropriate indoor or outdoor installations.
The VMGI-4KW-SP supports RS485 communication and optional Wi-Fi/4G connectivity, allowing convenient monitoring of solar system performance.
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