1200W Four-MPPT WiFi Solar Microinverter with Four Independent MC4 Inputs
A 1200 W peak grid-tied solar microinverter with four independent MPPT channels, four MC4 photovoltaic inputs and module-level WiFi monitoring. Its IP65 enclosure, pure sine wave output and parallel expansion capability support residential and distributed solar systems with uneven lighting conditions.
1. Four-Module Grid-Tied Architecture
The KU-OG-05-002 is a 1200 W peak solar microinverter developed for connecting up to four compatible photovoltaic modules. Each module uses a dedicated MC4 input and independent MPPT channel, allowing module-level power conversion within residential and distributed grid-tied solar systems.
2. Independent Four-Channel MPPT
• Four Independent MPPT Channels: Each photovoltaic input tracks its own maximum power point without being directly limited by the other channels.
• Four MC4 Input Groups: Provide standardized connections for four compatible solar modules.
• Module-Level Shading Management: Reduced sunlight or partial shading on one module does not directly restrict the output of the remaining MPPT channels.
• 99.9% MPPT Tracking Efficiency: Supports accurate power-point tracking across the specified voltage range.
• 10 A Current per Channel: Accepts compatible modules within each input’s voltage and current limits.
3. 1150W Rated Grid Output
• 1150 W Rated Power: Converts photovoltaic DC input into grid-compatible AC power under rated conditions.
• 1200 W Peak Power: Provides the specified maximum output capability.
• Pure Sine Wave Output: Supports stable grid-connected AC power conversion.
• Regional Grid Options: Available for compatible single-phase 120 VAC or 230 VAC electrical systems.
• Low Harmonic Distortion: Maintains output-current THD below 5% under the stated conditions.
4. Four-Channel WiFi Monitoring
• Built-In WiFi Communication: Connects to a compatible mobile application and cloud-monitoring platform.
• Independent PV Data: Displays the operating and generation data of all four photovoltaic inputs separately.
• Remote Generation Curves: Allows users and system operators to review historical power-generation trends.
• Module-Level Diagnostics: Helps identify output differences between individual panels during system inspection.
5. Distributed System Expansion
• Parallel Microinverter Operation: Multiple compatible units can be combined to increase total photovoltaic system capacity.
• Up to 10 kW System Configuration: Supports distributed solar projects with a designed capacity below 10 kW, subject to system engineering and local grid requirements.
• Modular Project Planning: Allows installers to expand the number of panels and microinverters according to available installation space.
• B2B Project Use: Suitable for solar installers, photovoltaic distributors, system integrators and residential-energy contractors.
6. Outdoor Protection and Grid Safety
• IP65 Enclosure: Provides protection against dust and water for suitable outdoor installations.
• Natural Cooling: Uses passive heat dissipation without a mechanical cooling fan.
• Anti-Islanding Protection: Stops AC output when a utility outage or abnormal grid condition is detected.
• Multiple Electrical Protections: Includes grid voltage, frequency, DC voltage, current, short-circuit, overload and overtemperature protection.
• Isolated Electrical Design: Uses high-frequency transformer isolation between the PV and grid sides.
This microinverter operates only with a compatible utility grid and does not provide standalone backup power during a grid outage. Installation and parallel expansion must comply with local electrical and grid-connection regulations.
| Item | Parameter |
|---|---|
| SKU | KU-OG-05-002 |
| Rated Output Power | 1150 W |
| Peak Output Power | 1200 W |
| MPPT Voltage Range | 28–55 V DC |
| DC Operating Range | 20–60 V DC |
| Maximum DC Input Voltage | 60 V DC |
| Startup Voltage | 20 V DC |
| Maximum DC Input Current | 10 A per channel |
| MPPT Channel Quantity | 4 |
| PV Input Quantity | 4 independent input groups |
| Rated AC Current at 120 V | 9.58 A |
| Rated AC Current at 230 V | 5 A |
| 120 V Output Range | 80–160 VAC |
| 230 V Output Range | 180–280 VAC |
| Rated Frequency | 50/60 Hz |
| 50 Hz Operating Range | 47.5–52.5 Hz |
| 60 Hz Operating Range | 57.5–62.5 Hz |
| Output Power Factor | >0.99 |
| Output Current THD | <5% |
| Maximum AC Cable Current | 40 A |
| Maximum Conversion Efficiency | 95% |
| 120 V CEC Weighted Efficiency | 92.5% |
| 230 V CEC Weighted Efficiency | 93.5% |
| MPPT Tracking Efficiency | 99.9% |
| Nighttime Standby Consumption | <700 mW |
| Net Weight | 2.42 kg |
| Product Dimensions | 315 × 290 × 40 mm |
| Operating Temperature | −40°C to +65°C |
| Storage Temperature | −40°C to +85°C |
| Operating Humidity | 0–95% RH, non-condensing |
| Protection Rating | IP65 |
| PV Connectors | Four independent MC4 input groups |
| AC Output Type | Single-phase pure sine wave |
| Grid Configurations | 120 VAC or 230 VAC |
| Cooling Method | Natural cooling |
| Isolation Method | High-frequency transformer isolation |
| Grounding Method | PE yellow-green conductor in the AC cable; no separate grounding terminal |
| Communication | Built-in WiFi |
| Remote Monitoring | Independent monitoring and generation curves for four PV inputs |
| Protection Functions | Anti-islanding, grid overvoltage, grid undervoltage, overfrequency, underfrequency, DC overvoltage, DC undervoltage, overcurrent, overload, short-circuit and overtemperature protection |
| Parallel Expansion | Supported with compatible microinverters |
| Maximum Stated System Capacity | Below 10 kW |
| Declared Certification | CE |
| Warranty Period | 5 years |
1. Applications
• Balcony solar systems
• Residential rooftop PV
• Four-panel solar installations
• Distributed photovoltaic systems
• Module-level power conversion
• Partial-shading solar projects
• Expandable grid-tied solar arrays
• Remote photovoltaic monitoring
• Distributed solar systems below 10 kW
2. Package
Included Accessories
• User Manual: 1 copy
• Microinverter: 1 unit
• AC Power Cable: 1 pc
• Mounting Accessories: 1 set

