430 W TOPCon solar panel with 144 cells. Voc 51.4 V · Isc 10.59 A · TcVoc -0.24%/°C.
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8 panels found · 4331 panels excluded
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 51.8 V | 0.8% |
| Vmpp | 43.2 V | 43.6 V | 0.9% |
| Isc | 10.59 A | 10.64 A | 0.5% |
| Impp | 9.96 A | 9.99 A | 0.3% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
425 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 50.9 V | 1.0% |
| Vmpp | 43.2 V | 42.9 V | 0.7% |
| Isc | 10.59 A | 10.56 A | 0.3% |
| Impp | 9.96 A | 9.92 A | 0.4% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 52.2 V | 1.6% |
| Vmpp | 43.2 V | 44 V | 1.9% |
| Isc | 10.59 A | 10.67 A | 0.8% |
| Impp | 9.96 A | 10.01 A | 0.5% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 52.6 V | 2.3% |
| Vmpp | 43.2 V | 44.3 V | 2.5% |
| Isc | 10.59 A | 10.71 A | 1.1% |
| Impp | 9.96 A | 10.05 A | 0.9% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
450 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 52.9 V | 2.9% |
| Vmpp | 43.2 V | 44.6 V | 3.2% |
| Isc | 10.59 A | 10.74 A | 1.4% |
| Impp | 9.96 A | 10.09 A | 1.3% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 49.97 V | 2.8% |
| Vmpp | 43.2 V | 40.6 V | 6.0% |
| Isc | 10.59 A | 11.26 A | 6.3% |
| Impp | 9.96 A | 10.84 A | 8.8% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 50.12 V | 2.5% |
| Vmpp | 43.2 V | 40.77 V | 5.6% |
| Isc | 10.59 A | 11.35 A | 7.2% |
| Impp | 9.96 A | 10.92 A | 9.6% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
450 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 51.4 V | 50.27 V | 2.2% |
| Vmpp | 43.2 V | 40.91 V | 5.3% |
| Isc | 10.59 A | 11.43 A | 7.9% |
| Impp | 9.96 A | 11.01 A | 10.5% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°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
51.4 V
Vmpp
43.2 V
Isc
10.59 A
Impp
9.96 A
TcVoc
-0.24 %/°C
TcPmax
-0.29 %/°C
Pmax
430 W
Cells
144
Bifaciality
80%
Length
1762 mm
Width
1134 mm
Thickness
30 mm
Weight
21 kg
The Trina Solar TSM-NEG9RC.27-430 is a 430 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 |
|---|---|---|---|
| TSM-NEG9RC.27-425 | 425 W | 50.9 V | 10.56 A |
| TSM-NEG9RC.27-435 | 435 W | 51.8 V | 10.64 A |
| TSM-NEG9RC.27-440 | 440 W | 52.2 V | 10.67 A |
| TSM-NEG9RC.27-445 | 445 W | 52.6 V | 10.71 A |
| TSM-NEG9RC.27-450 | 450 W | 52.9 V | 10.74 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 51.4 V (within ±5%), and temperature coefficient TcVoc close to -0.24%/°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 Trina Solar TSM-NEG9RC.27-430.