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TW Roof Top Solar Panels TWMND-78HD600-620W Solar Cell Panels Tongwei Half-cell Bifacial Module N-type Product Display

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MOQ: 10pcs

Temperature Ratings

  • Temperature Coefficient (Pmax): -0.30%/ºC
  • Temperature Coefficient (Voc): -0.25%/ºC
  • Temperature Coefficient (lsc): +0.046%/ºC
  • NMOT: 45±2ºC
  • Bifaciality: 80±5%

Operating Parameters

  • Operational Temperature: -40ºC～+85ºC
  • Maximum System Voltage: 1500V DC
  • Maximum Series Fuse Rating: 25A
  • Power Output Tolerance: 0～+5W

$223.00 – $231.00

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Parameters of TW Roof Top Solar Panels

Cell Type TNC
Cell Orientation 156[6×26]
Dimensions 2465±2mm × 1134±2mm × 30mm
Weight 34.6 kg
Front Glass 2.0 mm AR coated heat strengthened glass
Rear Glass 2.0 mm heat strengthened glass
Frame Anodized aluminum alloy black frame
Junction Box IP68, 3 diodes
Cable 4.0 mm²
Cable length +400mm, -200mm, length can be customized
Wind/Snow load 2400Pa/5400Pa
Packaging 36 pcs, 576 pcs per 40’HC
Fire class rating Class C

Statement: With technological process and product update, there maybe deviation between the technical parameters of Tongwei’s module products and the technical parameters contained in the specification, and Tongwei Solar has the right to adjust the technical parameters at any time without notifying the customer,the final interpretation of the technical specification is vested in Tongwei Solar.

Electrical Characteristics (STC)

Module type TWMND-78HD600-620W
Maximum Power : Pmax [W] 600 605 610 615 620
Open Circuit Voltage : Voc [V] 54.80 55.00 55.20 55.40 55.60
Short Circuit Current : lsc [A] 14.02 14.06 14.10 14.14 14.18
Voltage at Maximum Power: Vmp [V] 45.58 45.78 45.98 46.18 46.38
Current at Maximum Power: lmp [A] 13.16 13.22 13.27 13.32 13.37
Module Efficiency: η [%] 21.5 21.6 21.8 22.0 22.2
STC: Irradiance 1000W/m², Cell Temperature 25°C, Air Mass=1.5, Test Uncertainty: ±3%

Electrical Characteristics (NMOT)

Maximum Power : Pmax [W] 451.2 454.9 458.7 462.4 466.2
Open Circuit Voltage : Voc [V] 51.73 52.24 52.43 52.62 52.81
Short Circuit Current : lsc [A] 11.32 11.37 11.42 11.47 11.51
Voltage at Maximum Power: Vmp [V] 42.90 42.94 42.98 43.02 43.07
Current at Maximum Power: lmp [A] 10.52 10.59 10.66 10.72 10.79
NMOT: Irradiance 800W/m², Ambient Temperature 20°C, AM=1.5, Wind speed: 1m/s

Advantages of Half-cell N-type Modules

Higher Power output

  • Power of N-type modules is 15-20W higher than P-type under the same version

Higher Bifaciality

  • Bifacility of N-type modules is 10-15% higher than P-type under the same version

Lower Temperature Coefficient

  • Temperature coefficient of P-type module is -0.34%/℃
  • The N-type module optimizes temperature coefficient to -0.30%/℃
  • Power generation is particularly prominent in high-temperature environments

Better Power Guarantee

  • 1% degradation in the first year for N-type module (2% for P-type)
  • Both monofacial and bifacial has a 30-year output warranty (P-type bifacial 30-year, monofacial 25-year)
  • Power output after 30 years is not less than 87.4% of the initial power
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Max. Power

600W, 605W, 610W, 615W, 620W

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