300W WiFi Solar Microinverter with MPPT and Pure Sine Wave Grid Output

1. Compact Grid-Tied Solar Conversion

The KU-OG-05-003 is a single-phase solar microinverter that converts photovoltaic DC power into grid-compatible pure sine wave AC power. It provides 295 W rated output and 300 W peak output for small distributed photovoltaic installations using compatible solar modules.

2. Independent MPPT Power Tracking

• Single MPPT Channel: Independently tracks the connected photovoltaic module’s maximum power point.
• 99.9% MPPT Efficiency: Supports accurate power tracking within the specified voltage range.
• 28–55 V MPPT Range: Accommodates compatible low-voltage photovoltaic modules.
• Standard MC4 Input: Simplifies connection to a suitable solar module.
• 20 V Startup Voltage: Allows the inverter to begin operating when the photovoltaic input reaches the required level.

3. Regional Grid Output Configurations

• 120 V Grid Configuration: Provides 2.5 A rated output for compatible 120 VAC systems.
• 230 V Grid Configuration: Provides 1.3 A rated output for compatible 230 VAC systems.
• 50/60 Hz Operation: Supports the corresponding regional grid frequency within the specified operating range.
• >0.99 Power Factor: Supports efficient delivery of active power to the connected grid.
• <5% Current THD: Maintains the stated output-current harmonic distortion limit.

4. Outdoor Housing and Passive Cooling

• IP65 Protection: Provides dust and water protection for suitable outdoor installation conditions.
• Wide Operating Range: Designed for operation from −40°C to +65°C.
• Natural Cooling: Uses passive heat dissipation without a cooling fan.
• Compact Metal Housing: Measures 180 × 205 × 40 mm and weighs approximately 0.83 kg.

5. Monitoring and Electrical Protection

• Built-In WiFi: Supports remote operating-data monitoring through a compatible mobile application and cloud platform.
• Anti-Islanding Protection: Automatically stops grid output when a grid outage or abnormal grid condition is detected.
• Multiple Protection Functions: Includes grid voltage, frequency, DC voltage, overcurrent, short-circuit and overtemperature protection.
• High-Frequency Transformer Isolation: Provides electrical isolation within the inverter architecture.
• Parallel Expansion: Multiple compatible microinverters can be used to expand total system output.

6. Installation and Grid-Connection Guidance

This product is intended for grid-connected photovoltaic systems. Anti-islanding protection prevents standalone output during a utility outage, so it does not function as an independent backup-power source. Installation must comply with local grid-connection rules and should be completed by qualified electrical personnel.