440 W TOPCon solar panel with 108 cells. Voc 38.85 V · Isc 14.38 A · TcVoc -0.25%/°C.
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207 panels found · 3493 panels excluded
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.87 V | 0.1% |
| Vmpp | 32.26 V | 32.24 V | 0.1% |
| Isc | 14.38 A | 14.39 A | 0.1% |
| Impp | 13.64 A | 13.65 A | 0.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.3 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.85 V | 0.0% |
| Vmpp | 32.26 V | 32.44 V | 0.6% |
| Isc | 14.38 A | 14.51 A | 0.9% |
| Impp | 13.64 A | 13.73 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.85 V | 0.0% |
| Vmpp | 32.26 V | 32.44 V | 0.6% |
| Isc | 14.38 A | 14.51 A | 0.9% |
| Impp | 13.64 A | 13.73 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.85 V | 0.0% |
| Vmpp | 32.26 V | 32.44 V | 0.6% |
| Isc | 14.38 A | 14.51 A | 0.9% |
| Impp | 13.64 A | 13.73 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.85 V | 0.0% |
| Vmpp | 32.26 V | 32.44 V | 0.6% |
| Isc | 14.38 A | 14.51 A | 0.9% |
| Impp | 13.64 A | 13.73 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.85 V | 0.0% |
| Vmpp | 32.26 V | 32.44 V | 0.6% |
| Isc | 14.38 A | 14.51 A | 0.9% |
| Impp | 13.64 A | 13.73 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.83 V | 0.1% |
| Vmpp | 32.26 V | 32.26 V | 0.0% |
| Isc | 14.38 A | 14.61 A | 1.6% |
| Impp | 13.64 A | 13.82 A | 1.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.78 V | 0.2% |
| Vmpp | 32.26 V | 32.03 V | 0.7% |
| Isc | 14.38 A | 14.34 A | 0.3% |
| Impp | 13.64 A | 13.59 A | 0.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 39.01 V | 0.4% |
| Vmpp | 32.26 V | 32.22 V | 0.1% |
| Isc | 14.38 A | 14.42 A | 0.3% |
| Impp | 13.64 A | 13.67 A | 0.2% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.84 V | 0.0% |
| Vmpp | 32.26 V | 32.08 V | 0.6% |
| Isc | 14.38 A | 14.31 A | 0.5% |
| Impp | 13.64 A | 13.57 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.3 %/°C | ±0.010 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.9 V | 0.1% |
| Vmpp | 32.26 V | 32.47 V | 0.7% |
| Isc | 14.38 A | 14.31 A | 0.5% |
| Impp | 13.64 A | 13.55 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.85 V | 38.85 V | 0.0% |
| Vmpp | 32.26 V | 32.51 V | 0.8% |
| Isc | 14.38 A | 14.33 A | 0.3% |
| Impp | 13.64 A | 13.38 A | 1.9% |
| 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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Panel Matcher
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How the Algorithm Works
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Voc
38.85 V
Vmpp
32.26 V
Isc
14.38 A
Impp
13.64 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
440 W
Cells
108
Bifaciality
80%
Length
1722 mm
Width
1134 mm
Thickness
30 mm
Weight
24.7 kg
The RECOM RCM-440-7DBNG is a 440 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 |
|---|---|---|---|
| 410 W | 37.73 V | 13.94 A | |
| 415 W | 37.92 V | 13.99 A | |
| 420 W | 38.11 V | 14.07 A | |
| 425 W | 38.3 V | 14.15 A | |
| 430 W | 38.49 V | 14.23 A | |
| 435 W | 38.67 V | 14.31 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 38.85 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 RECOM RCM-440-7DBNG.