Find replacement for S-Energy SL45-72MAI-435Z

435 W PERC solar panel with 144 cells. Voc 49.7 V · Isc 11.26 A · TcVoc -0.29%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

39 panels found · 4300 panels excluded

S-Energy SL45-72MBI-435Z

435 W

PERC

100Exact match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.7 V	0.0%
Vmpp	40.8 V	40.8 V	0.0%
Isc	11.26 A	11.26 A	0.0%
Impp	10.67 A	10.67 A	0.0%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MBI-440Z

440 W

PERC

91Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.9 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	11.26 A	11.33 A	0.6%
Impp	10.67 A	10.74 A	0.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MAI-430Z

430 W

PERC

91Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.5 V	0.4%
Vmpp	40.8 V	40.6 V	0.5%
Isc	11.26 A	11.19 A	0.6%
Impp	10.67 A	10.6 A	0.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MAI-440Z

440 W

PERC

91Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.9 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	11.26 A	11.33 A	0.6%
Impp	10.67 A	10.74 A	0.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Waaree Energies WSMD-435

435 W

PERC

87Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.59 V	0.2%
Vmpp	40.8 V	41.21 V	1.0%
Isc	11.26 A	11.25 A	0.1%
Impp	10.67 A	10.56 A	1.0%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

Waaree Energies WSMD-440

440 W

PERC

87Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.69 V	0.0%
Vmpp	40.8 V	41.41 V	1.5%
Isc	11.26 A	11.34 A	0.7%
Impp	10.67 A	10.63 A	0.4%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

Luxor Solar LX-450M/166-144+ SW HC

450 W

PERC

84Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.68 V	0.0%
Vmpp	40.8 V	41.73 V	2.3%
Isc	11.26 A	11.39 A	1.2%
Impp	10.67 A	10.79 A	1.1%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Waaree Energies WSMD-430

430 W

PERC

83Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.39 V	0.6%
Vmpp	40.8 V	41.01 V	0.5%
Isc	11.26 A	11.19 A	0.6%
Impp	10.67 A	10.49 A	1.7%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

S-Energy SL45-72MBI-445Z

445 W

PERC

82Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	50.1 V	0.8%
Vmpp	40.8 V	41.2 V	1.0%
Isc	11.26 A	11.4 A	1.2%
Impp	10.67 A	10.81 A	1.3%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MAI-445Z

445 W

PERC

82Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	50.1 V	0.8%
Vmpp	40.8 V	41.2 V	1.0%
Isc	11.26 A	11.4 A	1.2%
Impp	10.67 A	10.81 A	1.3%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Luxor Solar LX-445M/166-144+ SW HC

445 W

PERC

80Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.34 V	0.7%
Vmpp	40.8 V	41.44 V	1.6%
Isc	11.26 A	11.34 A	0.7%
Impp	10.67 A	10.74 A	0.7%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Waaree Energies WSMD-445

445 W

PERC

79Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.89 V	0.4%
Vmpp	40.8 V	41.61 V	2.0%
Isc	11.26 A	11.41 A	1.3%
Impp	10.67 A	10.7 A	0.3%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

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

Original Panel Specs

Voc

49.7 V

Vmpp

40.8 V

Isc

11.26 A

Impp

10.67 A

TcVoc

-0.29 %/°C

TcPmax

-0.36 %/°C

Pmax

435 W

Cells

144

Length

2094 mm

Width

1038 mm

Thickness

35 mm

Weight

24 kg

The S-Energy SL45-72MAI-435Z is a 435 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
SL45-72MAI-430Z	430 W	49.5 V	11.19 A
SL45-72MAI-440Z	440 W	49.9 V	11.33 A
SL45-72MAI-445Z	445 W	50.1 V	11.4 A
SL45-72MAI-450Z	450 W	50.3 V	11.46 A
SL45-72MAI-455Z	455 W	50.5 V	11.53 A

Frequently Asked Questions

What specs must match when replacing the S-Energy SL45-72MAI-435Z?

The most critical specs to match are: cell count (must be exactly 144), Voc close to 49.7 V (within ±5%), and temperature coefficient TcVoc close to -0.29%/°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 S-Energy SL45-72MAI-435Z?

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 S-Energy SL45-72MAI-435Z.

All replacements

Find replacement for S-Energy SL45-72MAI-435Z

435 W PERC solar panel with 144 cells. Voc 49.7 V · Isc 11.26 A · TcVoc -0.29%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

39 panels found · 4300 panels excluded

S-Energy SL45-72MBI-435Z

435 W

PERC

100Exact match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.7 V	0.0%
Vmpp	40.8 V	40.8 V	0.0%
Isc	11.26 A	11.26 A	0.0%
Impp	10.67 A	10.67 A	0.0%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MBI-440Z

440 W

PERC

91Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.9 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	11.26 A	11.33 A	0.6%
Impp	10.67 A	10.74 A	0.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MAI-430Z

430 W

PERC

91Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.5 V	0.4%
Vmpp	40.8 V	40.6 V	0.5%
Isc	11.26 A	11.19 A	0.6%
Impp	10.67 A	10.6 A	0.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MAI-440Z

440 W

PERC

91Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.9 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	11.26 A	11.33 A	0.6%
Impp	10.67 A	10.74 A	0.7%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Waaree Energies WSMD-435

435 W

PERC

87Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.59 V	0.2%
Vmpp	40.8 V	41.21 V	1.0%
Isc	11.26 A	11.25 A	0.1%
Impp	10.67 A	10.56 A	1.0%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

Waaree Energies WSMD-440

440 W

PERC

87Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.69 V	0.0%
Vmpp	40.8 V	41.41 V	1.5%
Isc	11.26 A	11.34 A	0.7%
Impp	10.67 A	10.63 A	0.4%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

Luxor Solar LX-450M/166-144+ SW HC

450 W

PERC

84Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.68 V	0.0%
Vmpp	40.8 V	41.73 V	2.3%
Isc	11.26 A	11.39 A	1.2%
Impp	10.67 A	10.79 A	1.1%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Waaree Energies WSMD-430

430 W

PERC

83Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.39 V	0.6%
Vmpp	40.8 V	41.01 V	0.5%
Isc	11.26 A	11.19 A	0.6%
Impp	10.67 A	10.49 A	1.7%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

S-Energy SL45-72MBI-445Z

445 W

PERC

82Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	50.1 V	0.8%
Vmpp	40.8 V	41.2 V	1.0%
Isc	11.26 A	11.4 A	1.2%
Impp	10.67 A	10.81 A	1.3%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

S-Energy SL45-72MAI-445Z

445 W

PERC

82Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	50.1 V	0.8%
Vmpp	40.8 V	41.2 V	1.0%
Isc	11.26 A	11.4 A	1.2%
Impp	10.67 A	10.81 A	1.3%
TcVoc	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Luxor Solar LX-445M/166-144+ SW HC

445 W

PERC

80Good match

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.34 V	0.7%
Vmpp	40.8 V	41.44 V	1.6%
Isc	11.26 A	11.34 A	0.7%
Impp	10.67 A	10.74 A	0.7%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Waaree Energies WSMD-445

445 W

PERC

79Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.7 V	49.89 V	0.4%
Vmpp	40.8 V	41.61 V	2.0%
Isc	11.26 A	11.41 A	1.3%
Impp	10.67 A	10.7 A	0.3%
TcVoc	-0.29 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.35 %/°C	±0.010 %/°C

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

Original Panel Specs

Voc

49.7 V

Vmpp

40.8 V

Isc

11.26 A

Impp

10.67 A

TcVoc

-0.29 %/°C

TcPmax

-0.36 %/°C

Pmax

435 W

Cells

144

Length

2094 mm

Width

1038 mm

Thickness

35 mm

Weight

24 kg

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
SL45-72MAI-430Z	430 W	49.5 V	11.19 A
SL45-72MAI-440Z	440 W	49.9 V	11.33 A
SL45-72MAI-445Z	445 W	50.1 V	11.4 A
SL45-72MAI-450Z	450 W	50.3 V	11.46 A
SL45-72MAI-455Z	455 W	50.5 V	11.53 A