450 W TOPCon solar panel with 96 cells. Voc 35.95 V · Isc 15.81 A · TcVoc -0.24%/°C.
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86 panels found · 4253 panels excluded
455 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 36.1 V | 0.4% |
| Vmpp | 29.81 V | 30.06 V | 0.8% |
| Isc | 15.81 A | 15.85 A | 0.3% |
| Impp | 15.1 A | 15.14 A | 0.3% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
455 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 36.1 V | 0.4% |
| Vmpp | 29.81 V | 30.06 V | 0.8% |
| Isc | 15.81 A | 15.85 A | 0.3% |
| Impp | 15.1 A | 15.14 A | 0.3% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
455 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 36.1 V | 0.4% |
| Vmpp | 29.81 V | 30.06 V | 0.8% |
| Isc | 15.81 A | 15.85 A | 0.3% |
| Impp | 15.1 A | 15.14 A | 0.3% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
450 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 35.93 V | 0.1% |
| Vmpp | 29.81 V | 29.68 V | 0.4% |
| Isc | 15.81 A | 16.04 A | 1.5% |
| Impp | 15.1 A | 15.17 A | 0.5% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
450 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 35.91 V | 0.1% |
| Vmpp | 29.81 V | 30.04 V | 0.8% |
| Isc | 15.81 A | 15.73 A | 0.5% |
| Impp | 15.1 A | 14.98 A | 0.8% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 35.98 V | 0.1% |
| Vmpp | 29.81 V | 30.25 V | 1.5% |
| Isc | 15.81 A | 15.67 A | 0.9% |
| Impp | 15.1 A | 14.71 A | 2.6% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 35.81 V | 0.4% |
| Vmpp | 29.81 V | 30.01 V | 0.7% |
| Isc | 15.81 A | 15.62 A | 1.2% |
| Impp | 15.1 A | 14.66 A | 2.9% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 35.88 V | 0.2% |
| Vmpp | 29.81 V | 30.01 V | 0.7% |
| Isc | 15.81 A | 15.61 A | 1.3% |
| Impp | 15.1 A | 14.83 A | 1.8% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
455 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 36.1 V | 0.4% |
| Vmpp | 29.81 V | 29.82 V | 0.0% |
| Isc | 15.81 A | 16.14 A | 2.1% |
| Impp | 15.1 A | 15.27 A | 1.1% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
455 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 35.8 V | 0.4% |
| Vmpp | 29.81 V | 29.9 V | 0.3% |
| Isc | 15.81 A | 16.23 A | 2.7% |
| Impp | 15.1 A | 15.22 A | 0.8% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
460 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 36.25 V | 0.8% |
| Vmpp | 29.81 V | 30.31 V | 1.7% |
| Isc | 15.81 A | 15.89 A | 0.5% |
| Impp | 15.1 A | 15.18 A | 0.5% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
460 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 35.95 V | 36.25 V | 0.8% |
| Vmpp | 29.81 V | 30.31 V | 1.7% |
| Isc | 15.81 A | 15.89 A | 0.5% |
| Impp | 15.1 A | 15.18 A | 0.5% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°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
35.95 V
Vmpp
29.81 V
Isc
15.81 A
Impp
15.1 A
TcVoc
-0.24 %/°C
TcPmax
-0.28 %/°C
Pmax
450 W
Cells
96
Length
1762 mm
Width
1134 mm
Thickness
30 mm
Weight
24.3 kg
The Tongwei TWMNH-48HE450 is a 450 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 |
|---|---|---|---|
| TWMNH-48HE455 | 455 W | 36.1 V | 15.85 A |
| TWMNH-48HE460 | 460 W | 36.25 V | 15.89 A |
| TWMNH-48HE465 | 465 W | 36.4 V | 15.92 A |
| TWMNH-48HE470 | 470 W | 36.55 V | 15.95 A |
The most critical specs to match are: cell count (must be exactly 96), Voc close to 35.95 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 Tongwei TWMNH-48HE450.