505 W TOPCon solar panel with 108 cells. Voc 45.73 V · Isc 14.14 A · TcVoc -0.25%/°C.
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3 panels found · 4336 panels excluded
510 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.73 V | 45.87 V | 0.3% |
| Vmpp | 38.01 V | 38.18 V | 0.4% |
| Isc | 14.14 A | 14.21 A | 0.5% |
| Impp | 13.29 A | 13.36 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.73 V | 45.6 V | 0.3% |
| Vmpp | 38.01 V | 37.84 V | 0.4% |
| Isc | 14.14 A | 14.07 A | 0.5% |
| Impp | 13.29 A | 13.22 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 45.73 V | 45.46 V | 0.6% |
| Vmpp | 38.01 V | 37.68 V | 0.9% |
| Isc | 14.14 A | 13.99 A | 1.1% |
| Impp | 13.29 A | 13.14 A | 1.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
String Compatibility Calculator
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Voc
45.73 V
Vmpp
38.01 V
Isc
14.14 A
Impp
13.29 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
505 W
Cells
108
Bifaciality
80%
Length
2094 mm
Width
1134 mm
Thickness
35 mm
Weight
26 kg
The DMEGC DM505M10-66HSW is a 505 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 |
|---|---|---|---|
| DM495M10-66HSW | 495 W | 45.46 V | 13.99 A |
| DM500M10-66HSW | 500 W | 45.6 V | 14.07 A |
| DM510M10-66HSW | 510 W | 45.87 V | 14.21 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 45.73 V (within ±5%), and temperature coefficient TcVoc close to -0.25%/°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 DMEGC DM505M10-66HSW.