Trina Solar EcoFlow NEG18R.28 BF 520 W solar panel
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Choose countryThe Trina Solar EcoFlow NEG18R.28 BF is a 520 W solar panel suited to commercial and industrial rooftops. It combines Ni-TOPCon cells with up to 22.9% efficiency and a double-glass construction using 1.6 mm front and rear glass.
Power and temperature performance
The positive power tolerance is 0/+5 W, with a temperature coefficient of -0.29%/°C. Power degradation is a maximum of 1% in the first year and 0.4% per year thereafter. Its low-voltage design supports the construction of high-power systems.
Construction and installation
- Loads: snow loads up to 5 400 Pa and wind loads up to 2 400 Pa.
- Materials: AR-coated front glass, thermally strengthened rear glass and an anodised aluminium alloy frame.
- Connections: an IP68 junction box and 4.0 mm² PV cables.
- System integration: intended for new installations and system expansions, with compatibility stated for commonly used photovoltaic modules, optimisers and mounting systems.
The panel measures 1961 × 1134 × 30 mm and weighs 23.5 kg, providing key dimensions for planning its placement and system configuration.
| Manufacturer | EcoFlow |
|---|---|
| Model | NEG18R.28 BF |
| Photovoltaic cells | Monocrystalline |
| Number of cells | 108 |
| Dimensions | 1961 × 1134 × 30 mm |
| Weight | 23.5 kg |
| Front glass | 1.6 mm, high transmittance, AR-coated glass |
| Rear glass | 1.6 mm, high transmittance, thermally strengthened glass |
| Frame | 30 mm, anodised aluminium alloy |
| Junction box | IP68 rating, 3 bypass LEDs |
| Connection cables | 4.0 mm² PV cable; horizontal 1300/1300 mm, vertical 280/350 mm |
| Connector | TS4, TS4 Plus, MC4 EV02 |
| Cell technology | Ni-TOPCon |
| Maximum output power | 520 W |
| Maximum efficiency | 22.9% |
| Power tolerance | 0/+5 W |
| Temperature coefficient | -0.29%/°C |
| First-year power degradation | Maximum 1% |
| Subsequent annual power degradation | 0.4% per year |
| Fire rating | A+C |
| Snow load | Up to 5 400 Pa |
| Wind load | Up to 2 400 Pa |
| Intended installation location | Commercial and industrial rooftops |
| EAN | 5905156109629 |
|---|
Can this panel be used to expand an existing solar installation?
Yes. It is intended for both new installations and system expansions. Compatibility is stated for commonly used photovoltaic modules, optimisers and mounting systems, but no list of specific compatible models is provided.
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