Version 1.4 May 2024

SolarEdge Products Temperature Derating Technical note
Revision History

Version 1.4 May 2024 – Added SE300K, SE330K, SE330KUS
Version 1.3 March 2024 – Added S1400 Power Optimizer
Version 1.2 May 2023 - Editorial updates; formatting; update Power Optimizer table.

Contents

Revision History ........................................................................................................................................................ 1
Overview ...................................................................................................................................................................... 1
Background ................................................................................................................................................................ 1

Power Optimizers ..................................................................................................................................................... 2

Single Phase Inverters ............................................................................................................................................ 2

Three Phase Inverters ............................................................................................................................................. 5

Overview

SolarEdge Inverters and Power Optimizers operate at full power and full current up to aspecified maximum ambient temperature. When the ambient temperature exceeds thespecified maximum, they continue to operate at reduced ratings to prevent damage tothe devices. This technical note summarizes the derating properties of SolarEdge
Inverters and Power Optimizers.

Background

Inverters and Power Optimizers can reach high internal temperatures due to highambient temperatures. This might happen because of prolonged exposure to direct
sunlight or insufficient clearance between the device and other items, i.e. insufficient
airflow around the device. When either of these units reaches high internal temperatures,it gradually reduces its power output by reducing its output current. This power
reduction process is called “derating”. Derating protects sensitive components within theunit and prolongs its lifetime. When the ambient temperature falls below the specified
maximum, normal power output resumes.

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Power Optimizers

The following Power Optimizer models operate at full power and full current up to theambient temperatures listed in the table:
Power Optimizer Model
OP250-LV, OP300-MV, OP400-MV,
OP400-EV, OP600-96V, S1200,S1201
P960

AmbientTemperature150°F (65°C)
131°F (55°C)

H1300, S1200, S1201, S1400

149°F (65°C)

P400, P500, P1100, S500B, S650B

167°F (75°C)

P404, P485, P505, P600, P601, P605, 158°F (70°C)
P650, P700, P701, P730, P800s,P800p, P801, P850, P950,P860, M1600
M2640, OP480

176°F (80°C)

S440, S500, P300, P350, P320, P340, 185°F (85°C)
P370, P375/P395/P401, P405

Single Phase Inverters

The following inverter models operate at full power and full current up to the ambient
temperatures listed in the table.
Inverter Model
SE2200, SE3000, SE3500, SE4000, SE4000-16A,
SE5000, SE6000,

Ambient Temperature
120°F (50°C)

SE3500H, SE3680H, SE4000H, SE5000H,SE6000H, SE8000H, SE8250H, SE9200H
SE3000-US, SE3800-US, SE5000-US,
SE6000-US, SE7600-US, SE10000-US,
SE11400-US, SE5000H-US, SE6000H-US,SE7600H-US, SE10000H-US
SE2200H, SE3000H,
SE3000H-US, SE3800H-US

140°F (60°C)

These inverters operate at reduced ratings up to 140°F (60°C) according to the graphs below.
The graphs describe the reduction in current relative to ambient temperature. The actualoutput current is never higher than the maximum current specified in the inverter datasheets
and might be lower than described in the graphs due to specific inverter model ratings per
country and grid requirements.

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Three Phase Inverters

The following inverter models operate at full power and full current up to the ambient
temperatures listed in the table:
Inverter Model

SE3K, SE4K, SE5K, SE6K, SE7K,SE8K, SE9K, SE10K, SE12.5K
SE8K, SE8.25K

Ambient
Temperature
140°F (60°C)

135.5°F (57.5°C)

SE25K, SE50K

127°F (53°C)

SE9K, SE9KUS, SE10K, SE10KUS,
SE15K, SE16K, SE17K
SE14.4KUS, SE17.3KUS, SE20.1K,
SE27.6K, SE30K, SE30KUS, SE33.3K,
SE33.3KUS, SE40K, SE40KUS,
SE43.2KUS, SE55K, SE66.6K,
SE66.6KUS, SE75K, SE80K, SE80KUS,
SE82.8K, SE90K, SE100K, SE100KUS,
SE120K, SE120KUS

120°F (50°C)

SE300K, SE330K, SE330KUS

113°F (45°C)

These inverters operate at reduced ratings up to 140°F (60°C) according to the graphs below.
The graphs describe the reduction in current relative to ambient temperature. The actual
output current is never higher than the maximum current specified in the inverter datasheets
and might be lower than described in the graphs due to specific inverter model ratings per
country and grid requirements.

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