SolarEdge SE3000H-US Installation Manual page 40

NOTE
For systems with four PV strings per unit or more, fuses
may need to be installed in both the positive and negative
conductors as required by NEC Article 690.9. For more
information, refer to the "String Fusing Requirements
in SolarEdge Systems" technical note at
http://www.solaredge.com/files/pdfs/string_fusing_
requirements.pdf.
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.
4. Close the Safety Switch cover: Attach the switch cover and secure it by tightening
the four screws with a torque of 1.2 N*m/ 0.9 lb*ft.
5. Ensure proper conduit sealing; inspect the entire conduit run and use standard
conduit sealants to avoid water penetration.
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.3
Chapter 4: Connecting the AC and the Strings to the Safety Switch
Figure 20: DC Spring-clamp terminals
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