PVS300-TL-3300W-2 3300W Grid-Tied PV Inverter Unit

Module Feature

PVS300-TL-3300W-2 is a single-phase grid-connected photovoltaic inverter with rated output power 3300W.

It adopts dual independent MPPT tracking channels, can connect two groups of PV strings with different inclination or orientation. Built-in anti-islanding protection, AFCI arc fault detection, overvoltage, overcurrent, over-temperature and DC reverse polarity protection. Real-time power monitoring, power generation statistics, local LCD display and remote monitoring via Modbus. IP65 outdoor enclosure, fanless natural cooling design, suitable for rooftop solar photovoltaic system. Widely stocked as maintenance spare for distributed residential PV and small commercial photovoltaic power station.

Working principle

DC power from solar panels enters the MPPT boost circuit, the controller automatically adjusts working point to maximize solar power capture.

The IGBT inverter bridge converts DC into grid-synchronized AC power and feeds electricity into utility grid. Protection circuit continuously monitors grid voltage, frequency, arc fault and internal temperature. Once fault condition is triggered, the inverter will disconnect from the grid and lock output, upload alarm data to monitoring platform.

Onboard components

DC EMI filter, MPPT boost circuit, IGBT inverter module, grid synchronization unit, AFCI arc detection circuit, main control MCU, LCD indicator, communication module, terminal block and aluminum waterproof housing.

LED indicators

LCD screen displays PV voltage, grid parameters, output power, daily energy and fault codes. LED indicators show Power, Run, Fault status.

Hardware self‑diagnosis

Built-in supervision detects DC reverse connection, arc fault, grid out-of-range, over-temperature, insulation resistance fault and communication failure. Configuration and monitoring management are completed by dedicated PV monitoring software.

Programming softwarePV monitoring configuration tool, used for grid parameter setting, MPPT curve adjustment, communication address setup and generation data export.

Electrical & Process Parameters

Model:PVS300-TL-3300W-2 Brand:OEM PV series Device type:Grid-tied photovoltaic inverter Function:Convert solar DC power to synchronized AC power for grid feeding

Mechanical & Structure

Mounting:Outdoor wall mounting Protection class:IP65 Housing:Aluminum alloy waterproof enclosure

Environmental

Operating temperature:-25℃ ~ +60℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, IEC62116, IEC61683 Status:Original solar PV inverter spare

InstallationCut off PV DC side and AC grid power before replacement. Check PV string polarity, confirm grid voltage and frequency match, set grid protection parameters, test MPPT tracking and grid-connected power output after commissioning.

InterfaceDC PV input connectors, AC grid output terminal, Modbus communication port.

Diagnostic

No grid connection: Grid voltage/frequency out of allowable range, AC wiring open. Low power output: MPPT tracking abnormal, shaded PV panels. Arc fault trip: DC cable insulation damage, poor connector contact. Over-temperature alarm: Blocked heat sink, high ambient temperature.

Product BriefPVS300-TL-3300W-2 inverter, 3.3kW dual MPPT grid-tied PV inverter spare for rooftop photovoltaic power system replacement.