620 W TOPCon solar panel with 156 cells. Voc 56.71 V · Isc 13.83 A · TcVoc -0.26%/°C.
Select the panel you want to replace
Voc
56.71 V
Vmpp
47.44 V
Isc
13.83 A
Impp
13.07 A
TcVoc
-0.26 %/°C
TcPmax
-0.3 %/°C
Pmax
620 W
Cells
156
Bifaciality
80%
The Waaree Energies BiN-17-620 is a 620 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.
Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.
| Model | Power | Voc | Isc |
|---|---|---|---|
| 600 W | 53.3 V | 14.17 A | |
| 615 W | 56.55 V | 13.78 A | |
| 625 W | 56.88 V | 13.88 A | |
| 630 W | 57.02 V | 13.94 A | |
| 635 W | 57.18 V | 13.99 A | |
| 640 W | 57.33 V | 14.05 A | |
| 645 W | 57.49 V | 14.11 A |
The most critical specs to match are: cell count (must be exactly 156), Voc close to 56.71 V (within ±5%), and temperature coefficient TcVoc close to -0.26%/°C. If Voc differs significantly, the string voltage at extreme temperatures may shift outside the inverter's MPPT range. The replacement finder above pre-screens all candidates by these criteria.
A higher wattage panel usually has a higher Vmpp or Isc, which can affect string voltage and current. Small increases (up to 10–15%) are typically safe if the other electrical specs align. The replacement finder shows a compatibility score — 'Exact match' means the specs align closely. Always verify the replacement in the String Compatibility Calculator with your inverter before installation.
If the replacement has a significantly different Voc or Vmpp, the string voltage may shift outside the inverter's MPPT range, reducing energy production or causing faults. This effect is amplified at temperature extremes: at low temperatures, voltage rises by the TcVoc coefficient. The replacement finder automatically accounts for this — it scores candidates by how closely the electrical specs match the original Waaree Energies BiN-17-620.