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CAUTION!
Installing a SolarEdge system without ensuring compatibility of the module connectors with the
optimizer connectors may be unsafe and could cause functionality problems such as ground faults,
resulting in inverter shut down. To ensure mechanical compatibility of the SolarEdge optimizers'
connectors with the PV modules' connectors to which they are connected, use identical connectors
from the same manufacturer and of the same type on both the power optimizers and on the PV modules.
Les connecteurs du module doivent être mécaniquement compatibles avec les optimiseurs de
puissance. Sinon, le système SolarEdge installé peut être dangereux ou causer des problèmes
fonctionnels, tels que les défauts de terre, qui peuvent provoquer un arrêt de l'onduleur. Afin d'assurer la
compatibilité mécanique entre les optimiseurs de puissance SolarEdge et les modules auxquels ils sont
connectés, il faut Utiliser des connecteurs identiques du même fabricant et du même type aussi bien
pour les optimiseurs de puissance que pour les modules.
IMPORTANT SAFETY FEATURE
Modules with SolarEdge power optimizers are safe. They carry only a low safety voltage before the
inverter is turned ON. As long as the power optimizers are not connected to the inverter or the inverter is
turned OFF, each power optimizer will output a safe voltage of 1V.
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Power optimizers
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Stainless steel grounding lock washers
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Installation Guidelines
Frame-mounted power optimizers are mounted directly on the module frame ,
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regardless of racking system (rail-less or with rails). For installation of frame-mounted
power optimizers, refer to http://www.solaredge.com/sites/default/files/installing_
frame_mounted_power_optimizers.pdf.
The steps in this chapter refer to module add-on power optimizers. For smart
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modules, start from . Also refer to the documentation supplied with the smart
modules.
The power optimizer can be placed in any orientation.
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T o allow for heat dissipation, maintain a 2.5 cm / 1" clearance distance between the power optimizer
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and other surfaces.
If connecting more modules than optimizer inputs in parallel, use a branch cable (available from
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SolarEdge). Some commercial power optimizer models h ave a dual input .
Position the power optimizer close enough to its module so that their cables can be connected.
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Make sure to use power optimizers that have the required output conductor length:
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Minimize the use of extensions between power optimizers, and use only if connection between
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optimizers in different rows or arrays is required.
Do not use extension cables between the modules and the power optimizers.
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The minimum and maximum string length guidelines are stated in the power optimizer datasheets.
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Refer to the SolarEdge Site Designer for string length verification. The SolarEdge Site Designer is
available on the SolarEdge website at http://www.solaredge.us/products/installer-tools/site-
designer#/.
Completely shaded modules may cause their power optimizers to temporarily shut down. This will
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not affect the performance of the other power optimizers in the string, as long as the minimum
number of unshaded power optimizers connected in a string of modules is met. If under typical
conditions fewer than the minimum optimizers are connected to unshaded modules, add more
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SolarEdge-StorEdge Installation Guide MAN-01-00262-1.3
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Troubleshooting
