Description
The CROWN Micro VOLTMORE VMGI-1KW-SP is a compact 1KW single-phase on-grid solar inverter designed for small residential and grid-connected solar PV systems. It converts DC electricity generated by solar panels into AC electricity suitable for connection to a single-phase utility grid.
The VMGI-1KW-SP supports up to 1500W DC PV input power, a 600V maximum DC voltage, and a 60V–560V MPPT voltage range. It features a transformerless design, LCD display, RS485 communication, and multiple protection functions for reliable grid-connected solar operation.
Model: VMGI-1KW-SP
Rated Power: 1000W
Type: Single-Phase On-Grid / Grid-Tie Solar Inverter
Key Features
- 1KW Single-Phase On-Grid Solar Inverter
- Model: VMGI-1KW-SP
- Rated Output Power: 1000W
- Maximum AC Output Power: 1100W
- Rated Apparent Power: 1100VA
- Maximum PV DC Power: 1500W
- Maximum DC Input Voltage: 600V
- Normal DC Voltage: 380V
- MPPT Voltage Range: 60V–560V DC
- 1 MPPT Tracker
- 1 PV String per MPPT
- Maximum Input Current: 13A
- PV Short-Circuit Current: 15.6A
- Single-Phase AC Output
- Nominal AC Voltage: 230V
- Grid Frequency: 50/60Hz
- Maximum Output Current: 4.8A
- Power Factor: Approximately 1
- Adjustable Power Factor: 0.8 Leading to 0.8 Lagging
- THDI: <3%
- Maximum Efficiency: 97%
- Euro Efficiency: 96.5%
- Transformerless Design
- LCD Display
- RS485 Communication
- Anti-Islanding Protection
- DC Reverse Polarity Protection
- Overcurrent Protection
- Insulation Detection
- AC Short-Circuit Protection
- Built-in DC Switch
- 10-Year Warranty for the relevant CROWN Micro series/catalogue range.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | CROWN Micro |
| Series | VOLTMORE |
| Model | VMGI-1KW-SP |
| Inverter Type | Single-Phase On-Grid |
| Rated Output Power | 1000W |
| Maximum AC Output Power | 1100W |
| Rated Apparent Power | 1100VA |
| Maximum DC PV Power | 1500W |
| Maximum DC Voltage | 600V |
| Normal DC Voltage | 380V |
| MPPT Voltage Range | 60–560V DC |
| Number of MPPT | 1 |
| Strings per MPPT | 1 |
| Maximum Input Current | 13A |
| PV Short-Circuit Current | 15.6A |
| Nominal AC Voltage | 230V |
| Grid Frequency | 50/60Hz |
| Maximum Output Current | 4.8A |
| Power Factor | ~1 |
| Adjustable Power Factor | 0.8 Leading–0.8 Lagging |
| THDI | <3% |
| Maximum Efficiency | 97% |
| Euro Efficiency | 96.5% |
| Topology | Transformerless |
| Communication | RS485 |
| Display | LCD |
| Operating Temperature | -25°C to +60°C |
| Relative Humidity | 0–100% |
| Maximum Operating Altitude | ≤4000m |
| Noise Level | ≤25dB |
| Dimensions | 290 × 120 × 350 mm |
| Weight | 7.3 kg |
These specifications are taken from the available CROWN Micro VMGI-1KW-SP installation/operation documentation.
Protection Features
The CROWN Micro VOLTMORE VMGI-1KW-SP includes protection functions designed for safe grid-connected operation:
- DC Switch
- Anti-Islanding Protection
- Output Overcurrent Protection
- DC Reverse Polarity Protection
- Insulation Detection
- AC Short-Circuit Protection
- Overvoltage & Grid Protection
- Transformerless Safety Design
The VMGI-1KW-SP documentation also identifies DRM and backflow power control functions, supporting smart-grid applications.
Applications
The CROWN Micro VOLTMORE VMGI-1KW-SP is suitable for:
- 🏠 Small Residential Solar Systems
- 🏡 Home Rooftop Solar
- 🏢 Small Commercial Applications
- 🏪 Shops & Small Businesses
- 🌞 Small Rooftop PV Systems
- ⚡ Grid-Tied Solar Systems
- 🔋 Net Metering Applications
- 🌱 Small Renewable Energy Projects
Its 1KW capacity makes it particularly suitable for small solar PV installations where a single-phase grid connection is required.
Why Choose CROWN Micro VOLTMORE VMGI-1KW-SP?
Compact 1KW Solar Solution
The 1KW rated capacity makes this inverter a practical choice for smaller solar installations where a larger inverter would not be necessary.
High PV Input Capacity
The inverter supports up to 1500W of DC PV power, providing flexibility when designing a solar panel array.
Wide MPPT Voltage Range
The 60V–560V MPPT range allows flexibility when configuring compatible solar panels and strings.
Transformerless Design
The transformerless topology helps keep the inverter compact and lightweight while maintaining efficient power conversion.
Reliable Grid Connection
The VMGI-1KW-SP is designed specifically for single-phase grid-connected solar applications, with anti-islanding and other protection functions included.
Product Highlights
- 1KW Single-Phase On-Grid Solar Inverter
- 1000W Rated Output
- 1100W Maximum AC Output
- 1500W Maximum PV Input
- 600V Maximum PV Voltage
- 60–560V MPPT Range
- 1 MPPT Tracker
- 97% Maximum Efficiency
- 96.5% Euro Efficiency
- 4.8A Maximum Output Current
- Transformerless Design
- LCD Display
- RS485 Communication
- Anti-Islanding Protection
- DC Reverse Polarity Protection
- AC Short-Circuit Protection
- 7.3kg Lightweight Design






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