Datasheet KSO-340 PV module at STC
Datasheet PZ DC power optimiser
Pnom opt >= PA max
Pnom opt Power rating of DC power optimiser (W)
PA max Maximum power output of solar panel at standard test condition (STC)
Maximum power output of solar panel, PA max = 340 W
Choose PZ 370 because its Pnom opt is 370 W (>PA max).
Design And Sizing of Grid-Connected Photovoltaic Power System - SEDA Malaysia- 4th Published 2023
Example 6.1