Chapter 2: Installing The Power Optimizers; Safety; Installation Guidelines - SolarEdge SE50K Installation Manual

Chapter 2: Installing the Power Optimizers

Safety

The following notes and warnings apply when installing the SolarEdge power optimizers. Some of the
following may not be applicable to smart modules:
WARNING!
When modifying an existing installation, turn OFF the inverter ON/OFF switch, the Connection Unit and
the AC circuit breaker on the main AC distribution panel.
WARNING!
Input and output connectors are not watertight until mated. Open connectors should be mated to each
other or plugged with appropriate watertight caps.
CAUTION!
Power optimizers are IP68/NEMA6P rated. Choose a mounting location where optimizers will not be
submerged in water.
CAUTION!
This unit must be operated according to the operating specifications provided with the unit.
CAUTION!
Cutting the power optimizer input or output cable connector is prohibited and will void the warranty.
CAUTION!
All PV modules must be connected to a power optimizer.
CAUTION!
If you intend to mount the optimizers directly to the module or module frame, first consult the module
manufacturer for guidance regarding the mounting location and the impact, if any, on module warranty.
Drilling holes in the module frame should be done according to the module manufacturer instructions.
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.
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.

Installation Guidelines

Frame-mounted power optimizers are mounted directly on the module frame ,
l
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.
Extended Power Commercial Inverter Installation Guide MAN-01-00402-1.0
Chapter 2: Installing the Power Optimizers
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