515 W TOPCon solar panel with 120 cells. Voc 44.3 V · Isc 14.66 A · TcVoc -0.25%/°C.
Select the panel you want to replace
Panel not in the catalogue?
85 of the 4,444 panels in the catalogue can replace DAH Solar DHN-60R20/DG-515W. Before you buy, check your pick in the string calculator with your inverter.
CloseNoticeableLarge differenceTap or click a difference to see what it means for your string.
Near-identical electrics — a drop-in swap for the same string.
Match 100 % · 5 models
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 80–93 % · 25 models
Noticeable differences — the string voltage and current need a careful check.
Match 60–79 % · 34 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 41–59 % · 21 models
String Compatibility Calculator
Verify the replacement panel works with your inverter
Panel Matcher
Find all compatible panels for a specific inverter
Already have panels?
Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.
How the Algorithm Works
Learn how panels are scored and matched
Voc
44.3 V
Vmpp
37.7 V
Isc
14.66 A
Impp
13.66 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
515 W
Cells
120
Bifaciality
80%
Length
1994 mm
Width
1134 mm
Thickness
30 mm
Weight
27 kg
The DAH Solar DHN-60R20/DG-515W 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 |
|---|---|---|---|
| DHN-60R20/DG-495W | 495 W | 43.5 V | 14.42 A |
| DHN-60R20/DG-500W | 500 W | 43.7 V | 14.48 A |
| DHN-60R20/DG-505W | 505 W | 43.9 V | 14.54 A |
| DHN-60R20/DG-510W | 510 W | 44.1 V | 14.6 A |
| DHN-60R20/DG-520W | 520 W | 44.5 V | 14.72 A |
The most critical specs to match are: cell count (must be exactly 120), Voc close to 44.3 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 DAH Solar DHN-60R20/DG-515W.