Find replacement for JA Solar JAM54D50-550/GR

550 W TOPCon solar panel with 162 cells. Voc 41.17 V · Isc 16.93 A · TcVoc -0.22%/°C.

Original Panel

Select the panel you want to replace

Panel not in the catalogue?

7 of the 4,444 panels in the catalogue can replace JA Solar JAM54D50-550/GR. 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.

Good match

Small differences within tolerance — safe once verified in the calculator with your inverter.

Match 83–94 % · 6 models

JA Solar JAM54D50-545/GR — Open the panel page
545 WTOPConsame series
94 %
JA Solar JAM54D51-540/GR — Open the panel page
540 WTOPCon
93 %
JA Solar JAM54D51-535/GR — Open the panel page
535 WTOPCon
90 %
JA Solar JAM54D50-540/GR — Open the panel page
540 WTOPConsame series
89 %
JA Solar JAM54D51-530/GR — Open the panel page
530 WTOPCon
84 %

Acceptable

Noticeable differences — the string voltage and current need a careful check.

Match 77 % · 1 model

JA Solar JAM54D50-530/GR — Open the panel page
530 WTOPConsame series
77 %

String Compatibility Calculator

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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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Original Panel Specs

Voc

41.17 V

Vmpp

34.11 V

Isc

16.93 A

Impp

16.12 A

TcVoc

-0.22 %/°C

TcPmax

-0.26 %/°C

Pmax

550 W

Cells

162

Length

1961 mm

Width

1134 mm

Thickness

30 mm

Weight

27.4 kg

The JA Solar JAM54D50-550/GR 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.

Other models in this series

Model	Power	Voc	Isc
JAM54D50-525/GR	525 W	40.79 V	16.68 A
JAM54D50-530/GR	530 W	40.88 V	16.73 A
JAM54D50-535/GR	535 W	40.95 V	16.78 A
JAM54D50-540/GR	540 W	41.02 V	16.83 A
JAM54D50-545/GR	545 W	41.1 V	16.88 A

Frequently Asked Questions

What specs must match when replacing the JA Solar JAM54D50-550/GR?

The most critical specs to match are: cell count (must be exactly 162), Voc close to 41.17 V (within ±5%), and temperature coefficient TcVoc close to -0.22%/°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.

Can I use a higher wattage replacement for the JA Solar JAM54D50-550/GR?

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.

What happens if the replacement panel has different voltage specs?

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 JA Solar JAM54D50-550/GR.

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