Find replacement for Kopp KOPP-385Wp

385 W PERC solar panel with 120 cells. Voc 41.78 V · Isc 11.53 A · TcVoc -0.27%/°C.

Original Panel

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Same technology onlyShow only panels with matching cell technology

Compatible Replacements

11 panels found · 3689 panels excluded

München Solar MSMD380M6-60

380 W

PERC

68Acceptable

Parameter	Original	Replacement	Deviation
Voc	41.78 V	41.4 V	0.9%
Vmpp	35.04 V	34.7 V	1.0%
Isc	11.53 A	11.63 A	0.9%
Impp	10.99 A	10.95 A	0.4%
TcVoc	-0.27 %/°C	-0.304 %/°C	±0.034 %/°C
TcPmax	-0.35 %/°C	-0.35 %/°C	±0.000 %/°C

München Solar MSMD375M6-60

375 W

PERC

59Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	41.2 V	1.4%
Vmpp	35.04 V	34.5 V	1.5%
Isc	11.53 A	11.56 A	0.3%
Impp	10.99 A	10.86 A	1.2%
TcVoc	-0.27 %/°C	-0.304 %/°C	±0.034 %/°C
TcPmax	-0.35 %/°C	-0.35 %/°C	±0.000 %/°C

Risen RSM40-8-405M

405 W

PERC

58Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	41.6 V	0.4%
Vmpp	35.04 V	34.64 V	1.1%
Isc	11.53 A	12.4 A	7.5%
Impp	10.99 A	11.7 A	6.5%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

München Solar MSMD370M6-60

370 W

PERC

49Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	40.9 V	2.1%
Vmpp	35.04 V	34.3 V	2.1%
Isc	11.53 A	11.49 A	0.3%
Impp	10.99 A	10.79 A	1.8%
TcVoc	-0.27 %/°C	-0.304 %/°C	±0.034 %/°C
TcPmax	-0.35 %/°C	-0.35 %/°C	±0.000 %/°C

Risen RSM40-8-400M

400 W

PERC

48Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	41.3 V	1.1%
Vmpp	35.04 V	34.39 V	1.9%
Isc	11.53 A	12.34 A	7.0%
Impp	10.99 A	11.64 A	5.9%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

München Solar MSMD365M6-60

365 W

PERC

44Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	40.7 V	2.6%
Vmpp	35.04 V	34.1 V	2.7%
Isc	11.53 A	11.42 A	1.0%
Impp	10.99 A	10.71 A	2.5%
TcVoc	-0.27 %/°C	-0.304 %/°C	±0.034 %/°C
TcPmax	-0.35 %/°C	-0.35 %/°C	±0.000 %/°C

Risen RSM40-8-395M

395 W

PERC

37Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	41 V	1.9%
Vmpp	35.04 V	34.14 V	2.6%
Isc	11.53 A	12.27 A	6.4%
Impp	10.99 A	11.58 A	5.4%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

Trina Solar TSM-395 DE09.05

395 W

PERC

36Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	41 V	1.9%
Vmpp	35.04 V	34 V	3.0%
Isc	11.53 A	12.21 A	5.9%
Impp	10.99 A	11.62 A	5.7%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

Trina Solar TSM-390 DE09.05

390 W

PERC

34Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	40.8 V	2.3%
Vmpp	35.04 V	33.8 V	3.5%
Isc	11.53 A	12.14 A	5.3%
Impp	10.99 A	11.54 A	5.0%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

Risen RSM40-8-390M

390 W

PERC

34Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	40.69 V	2.6%
Vmpp	35.04 V	33.88 V	3.3%
Isc	11.53 A	12.21 A	5.9%
Impp	10.99 A	11.52 A	4.8%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

Trina Solar TSM-385 DE09.05

385 W

PERC

33Marginal

Parameter	Original	Replacement	Deviation
Voc	41.78 V	40.6 V	2.8%
Vmpp	35.04 V	33.6 V	4.1%
Isc	11.53 A	12.07 A	4.7%
Impp	10.99 A	11.46 A	4.3%
TcVoc	-0.27 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.35 %/°C	-0.34 %/°C	±0.010 %/°C

String Compatibility Calculator

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Original Panel Specs

Voc

41.78 V

Vmpp

35.04 V

Isc

11.53 A

Impp

10.99 A

TcVoc

-0.27 %/°C

TcPmax

-0.35 %/°C

Pmax

385 W

Cells

120

Length

1769 mm

Width

1052 mm

Thickness

35 mm

Weight

20.2 kg

The Kopp KOPP-385Wp is a 385 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.

Frequently Asked Questions

What specs must match when replacing the Kopp KOPP-385Wp?

The most critical specs to match are: cell count (must be exactly 120), Voc close to 41.78 V (within ±5%), and temperature coefficient TcVoc close to -0.27%/°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 Kopp KOPP-385Wp?

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 Kopp KOPP-385Wp.