P400 Installation
Table Of Contents
- SolarEdge Installation Guide - North America Version 4.0
- Disclaimers
- Support and Contact Information
- Contents
- HANDLING AND SAFETY INSTRUCTIONS
- IMPORTANT SAFETY INSTRUCTIONS
- Chapter 1: Introducing the SolarEdge Power Harvesting System
- Chapter 2: Installing the Power Optimizers
- Chapter 3: Installing the Inverter
- Chapter 4: Connecting the AC and the Strings to the Safety Switch
- Chapter 5: Commissioning the Installation
- Chapter 6: User Interface
- Chapter 7: Setting Up Communication
- Appendix A: Errors and Troubleshooting
- Appendix B: Technical Specifications
- Appendix C: Mechanical Specifications
- Appendix D: External Fan Maintenance and Replacement
- Appendix E: Replacing and Adding System Components
- Appendix F: Inverter Arc Detection and Interruption
Connecting the Strings to the Safety Switch
StringsmaybeconnectedinparalleltothetwoDCinputpairsoftheswitch.Ifmorethantwo
stringsarerequired,theycanbeconnectedinparallelusinganexternalcombinerboxbefore
connectingtotheswitch.Whenconnectingmultiplestrings,itisrecommendedtorun
separatecircuitstotheSafetySwitchortopositionthecombinerboxneartheswitch.This
simplifiescommissioningbyallowingtestingandservicingneartheinverter.
To connect the strings to the safety switch:
1. Strip5⁄16''(8mm)oftheDCwireinsulation.
2. InserttheDCconduitintotheDC-sideknockoutthatwasopened.
3. Equipmentgrounding:ConnecttheDCequipmentgroundconductortotheequipment
groundingterminalblockintheSafetySwitch.
NOTE
Functional Electrical Earthing of DC-side negative or positive is prohibited because the
inverter has no transformer. Earthing of module frames and mounting equipment
(equipotential bonding) is required per NEC.
4. ConnecttheDCwires:
CAUTION!
Ensure that the Plus (+) wire is connected to the + terminal and that the Minus (-) wire is
connected to the Minus (-) terminal connector.
Veillez à ce que le câble Plus (+) soit connecté au terminal + et que le câble - soit connecté
au connecteur terminal.
NOTE
If more than two strings are connected each should be properly fused on both DC+ and
DC- according to NEC690.35(B).
NOTE
SolarEdge's fixed input voltage architecture enables the parallel strings to be of different
lengths. Therefore, they do not need to have the same number of power optimizers, as
long as the length of each string is within the permitted range.
l For single phase 3-7.6kW inverters-ConnecttheDCwiresfromthePVinstallationto
theDC+andDC-terminalblocks,accordingtothelabelsontheterminals.Usea
standardstraight-bladedscrewdrivertoconnectthewirestothespring-clamp
terminals,asdescribedfortheACconnectionofsinglephase3-7.6kWinverters
(connect the AC grid to the Safety Switch – single phase 3-7.6kW inverters:onpage38).
Chapter 4: Connecting the AC and the Strings to the Safety Switch
SolarEdge-Installation Guide MAN-01-00002-4.0
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