540 W PERC solar panel with 144 cells. Voc 49.6 V · Isc 13.74 A · TcVoc -0.275%/°C.
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92 panels found · 4247 panels excluded
535 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.5 V | 0.2% |
| Vmpp | 41.99 V | 41.87 V | 0.3% |
| Isc | 13.74 A | 13.64 A | 0.7% |
| Impp | 12.87 A | 12.79 A | 0.6% |
| TcVoc | -0.275 %/°C | -0.275 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.7 V | 0.2% |
| Vmpp | 41.99 V | 42.11 V | 0.3% |
| Isc | 13.74 A | 13.84 A | 0.7% |
| Impp | 12.87 A | 12.96 A | 0.7% |
| TcVoc | -0.275 %/°C | -0.275 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
540 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.6 V | 0.0% |
| Vmpp | 41.99 V | 41.64 V | 0.8% |
| Isc | 13.74 A | 13.86 A | 0.9% |
| Impp | 12.87 A | 12.97 A | 0.8% |
| TcVoc | -0.275 %/°C | -0.275 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
540 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.61 V | 0.0% |
| Vmpp | 41.99 V | 41.75 V | 0.6% |
| Isc | 13.74 A | 13.83 A | 0.7% |
| Impp | 12.87 A | 12.95 A | 0.6% |
| TcVoc | -0.275 %/°C | -0.27 %/°C | ±0.005 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
550 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.8 V | 0.4% |
| Vmpp | 41.99 V | 42.2 V | 0.5% |
| Isc | 13.74 A | 13.94 A | 1.5% |
| Impp | 12.87 A | 13.04 A | 1.3% |
| TcVoc | -0.275 %/°C | -0.275 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
530 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.65 V | 0.1% |
| Vmpp | 41.99 V | 41.7 V | 0.7% |
| Isc | 13.74 A | 13.47 A | 2.0% |
| Impp | 12.87 A | 12.71 A | 1.2% |
| TcVoc | -0.275 %/°C | -0.275 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
535 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.78 V | 0.4% |
| Vmpp | 41.99 V | 41.93 V | 0.1% |
| Isc | 13.74 A | 13.52 A | 1.6% |
| Impp | 12.87 A | 12.76 A | 0.9% |
| TcVoc | -0.275 %/°C | -0.275 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.67 V | 0.1% |
| Vmpp | 41.99 V | 41.85 V | 0.3% |
| Isc | 13.74 A | 13.9 A | 1.2% |
| Impp | 12.87 A | 13.03 A | 1.2% |
| TcVoc | -0.275 %/°C | -0.27 %/°C | ±0.005 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
540 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.52 V | 0.2% |
| Vmpp | 41.99 V | 41.7 V | 0.7% |
| Isc | 13.74 A | 13.83 A | 0.7% |
| Impp | 12.87 A | 12.95 A | 0.6% |
| TcVoc | -0.275 %/°C | -0.27 %/°C | ±0.005 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.65 V | 0.1% |
| Vmpp | 41.99 V | 41.8 V | 0.5% |
| Isc | 13.74 A | 13.92 A | 1.3% |
| Impp | 12.87 A | 13.04 A | 1.3% |
| TcVoc | -0.275 %/°C | -0.265 %/°C | ±0.010 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
540 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.52 V | 0.2% |
| Vmpp | 41.99 V | 41.67 V | 0.8% |
| Isc | 13.74 A | 13.84 A | 0.7% |
| Impp | 12.87 A | 12.96 A | 0.7% |
| TcVoc | -0.275 %/°C | -0.28 %/°C | ±0.005 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
545 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 49.6 V | 49.68 V | 0.2% |
| Vmpp | 41.99 V | 41.83 V | 0.4% |
| Isc | 13.74 A | 13.91 A | 1.2% |
| Impp | 12.87 A | 13.03 A | 1.2% |
| TcVoc | -0.275 %/°C | -0.28 %/°C | ±0.005 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
49.6 V
Vmpp
41.99 V
Isc
13.74 A
Impp
12.87 A
TcVoc
-0.275 %/°C
TcPmax
-0.34 %/°C
Pmax
540 W
Cells
144
Length
2279 mm
Width
1134 mm
Thickness
35 mm
Weight
28.5 kg
The Risen RSM144-9-540M is a 540 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 |
|---|---|---|---|
| RSM144-9-535M | 535 W | 49.5 V | 13.64 A |
| RSM144-9-545M | 545 W | 49.7 V | 13.84 A |
| RSM144-9-550M | 550 W | 49.8 V | 13.94 A |
| RSM144-9-555M | 555 W | 49.91 V | 14.04 A |
| RSM144-9-560M | 560 W | 50.01 V | 14.14 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 49.6 V (within ±5%), and temperature coefficient TcVoc close to -0.275%/°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 Risen RSM144-9-540M.