515 W TOPCon solar panel with 120 cells. Voc 43.68 V · Isc 14.8 A · TcVoc -0.23%/°C.
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18 panels found · 4321 panels excluded
510 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.62 V | 0.1% |
| Vmpp | 37.05 V | 37 V | 0.1% |
| Isc | 14.8 A | 14.68 A | 0.8% |
| Impp | 13.9 A | 13.78 A | 0.9% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.7 V | 0.0% |
| Vmpp | 37.05 V | 36.47 V | 1.6% |
| Isc | 14.8 A | 14.48 A | 2.2% |
| Impp | 13.9 A | 13.71 A | 1.4% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.86 V | 0.4% |
| Vmpp | 37.05 V | 37.04 V | 0.0% |
| Isc | 14.8 A | 14.43 A | 2.5% |
| Impp | 13.9 A | 13.36 A | 3.9% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
520 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 44.01 V | 0.8% |
| Vmpp | 37.05 V | 37.33 V | 0.8% |
| Isc | 14.8 A | 14.83 A | 0.2% |
| Impp | 13.9 A | 13.93 A | 0.2% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
505 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.42 V | 0.6% |
| Vmpp | 37.05 V | 36.83 V | 0.6% |
| Isc | 14.8 A | 14.6 A | 1.4% |
| Impp | 13.9 A | 13.71 A | 1.4% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
505 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.88 V | 0.5% |
| Vmpp | 37.05 V | 36.62 V | 1.2% |
| Isc | 14.8 A | 14.57 A | 1.6% |
| Impp | 13.9 A | 13.79 A | 0.8% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
510 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 44.1 V | 1.0% |
| Vmpp | 37.05 V | 36.8 V | 0.7% |
| Isc | 14.8 A | 14.64 A | 1.1% |
| Impp | 13.9 A | 13.86 A | 0.3% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.53 V | 0.3% |
| Vmpp | 37.05 V | 36.32 V | 2.0% |
| Isc | 14.8 A | 14.4 A | 2.7% |
| Impp | 13.9 A | 13.63 A | 1.9% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 44.06 V | 0.9% |
| Vmpp | 37.05 V | 37.24 V | 0.5% |
| Isc | 14.8 A | 14.5 A | 2.0% |
| Impp | 13.9 A | 13.43 A | 3.4% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.28 %/°C | ±0.000 %/°C |
505 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.6 V | 0.2% |
| Vmpp | 37.05 V | 35.9 V | 3.1% |
| Isc | 14.8 A | 14.7 A | 0.7% |
| Impp | 13.9 A | 14.07 A | 1.2% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.4 V | 0.6% |
| Vmpp | 37.05 V | 35.8 V | 3.4% |
| Isc | 14.8 A | 14.63 A | 1.1% |
| Impp | 13.9 A | 13.97 A | 0.5% |
| TcVoc | -0.23 %/°C | -0.23 %/°C | ±0.000 %/°C |
| TcPmax | -0.28 %/°C | -0.29 %/°C | ±0.010 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 43.68 V | 43.5 V | 0.4% |
| Vmpp | 37.05 V | 35.92 V | 3.0% |
| Isc | 14.8 A | 14.44 A | 2.4% |
| Impp | 13.9 A | 13.92 A | 0.1% |
| TcVoc | -0.23 %/°C | -0.25 %/°C | ±0.020 %/°C |
| TcPmax | -0.28 %/°C | -0.3 %/°C | ±0.020 %/°C |
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
43.68 V
Vmpp
37.05 V
Isc
14.8 A
Impp
13.9 A
TcVoc
-0.23 %/°C
TcPmax
-0.28 %/°C
Pmax
515 W
Cells
120
Length
1994 mm
Width
1134 mm
Thickness
30 mm
Weight
23.5 kg
The Horay Solar HS515TC-MHB is a 515 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 |
|---|---|---|---|
| HS505TC-MHB | 505 W | 43.42 V | 14.6 A |
| HS510TC-MHB | 510 W | 43.62 V | 14.68 A |
| HS520TC-MHB | 520 W | 44.01 V | 14.83 A |
The most critical specs to match are: cell count (must be exactly 120), Voc close to 43.68 V (within ±5%), and temperature coefficient TcVoc close to -0.23%/°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 Horay Solar HS515TC-MHB.