Installation Guide Manual

Revision History
Version 4.3 (February 2019)
Added appendix 'Determining the Circuit Breaker Size' and paragraph
referencing to it, in the 'Grid Connection Guidelines' section.
In Specifications removed 'Recommended OCPD size per grid' table.
Version 4.2 (July. 2018)
This guide describes three phase inverters only
Update of product names
Hardware change - new enclosure, interfaces and communication board
Addition of possibility to use compatible connectors from third-party
manufacturers
Update regarding use of extension cables in power optimizer installation
guidelines
Recommendation to mount the power optimizer in a location protected from
direct sunlight
Power optimizer clearance - no clearance is required on the mounting bracket
side
Addition of caution - installation in saline environment
Clearance for three phase inverters installed side-by-side, single row of inverters
outdoors: 5 cm / 2”
PVRSSis enabled by default. Enabling/ disabling PVRSS feature can be done
from the inverter LCD menus.
Addition of reference to troubleshooting undetected devices application note
Torque for grounding using the equipment grounding bus-bar: 4.0 N*M /
35.lb*in
Torque for connecting DC strings to the fuse holders in the Safety Switch: 3.4
N*M / 30 lb*in
Addition of link to the Designer web page
Updated warning about sealing unused power optimizer input connectors
-Three Phase System Installation Guide MAN-01-00002-4.3
4 Revision History
Added Proposition 65 warning (for California).w