550 W TOPCon solar panel with 144 cells. Voc 50.21 V · Isc 14 A · TcVoc -0.25%/°C.
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Panel not in the catalogue?
116 of the 4,444 panels in the catalogue can replace RECOM RCM-550-7DBNF. 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 98 % · 1 model
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 82–94 % · 10 models
Noticeable differences — the string voltage and current need a careful check.
Match 60–79 % · 52 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 40–59 % · 53 models
String Compatibility Calculator
Verify the replacement panel works with your inverter
Panel Matcher
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Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.
How the Algorithm Works
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Voc
50.21 V
Vmpp
41.5 V
Isc
14 A
Impp
13.26 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
550 W
Cells
144
Bifaciality
80%
Length
2278 mm
Width
1134 mm
Thickness
30 mm
Weight
32.2 kg
The RECOM RCM-550-7DBNF is a 550 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 |
|---|---|---|---|
| RCM-555-7DBNF | 555 W | 50.34 V | 14.07 A |
| RCM-560-7DBNF | 560 W | 50.47 V | 14.15 A |
| RCM-565-7DBNF | 565 W | 50.6 V | 14.23 A |
| RCM-570-7DBNF | 570 W | 50.74 V | 14.31 A |
| RCM-575-7DBNF | 575 W | 50.88 V | 14.39 A |
| RCM-580-7DBNF | 580 W | 51.02 V | 14.47 A |
| RCM-585-7DBNF | 585 W | 51.16 V | 14.55 A |
| RCM-590-7DBNF | 590 W | 51.31 V | 14.63 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 50.21 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 RECOM RCM-550-7DBNF.