Installation Guide

Chapter 5: Connecting the AC and the Strings
to the Connection Unit
The Connection Unit disconnects all ungrounded DC conductors of the circuit to which
it is connected in compliance with the National Electric Code, and specifically
NEC690.35, which addresses ungrounded PV arrays. The Safety Switch is rated to the
maximum operating conditions of the inverter.
The following figure illustrates the Safety Switch.
Figure 19: Inside the Safety Switch
Grid Connection Guidelines
In single phase inverters connected to corner grounded grids, connect the L2
terminal to the grounded conductor. When connecting to other grids, L1 and L2
are interchangeable.
The conduits, hubs and fittings must be suited for field wiring systems.
The hubs and other fittings must comply with UL514B.
Use the conduit and wiring appropriate for the installation location per the NEC.
Outdoor installations must use components that are rated NEMA 3R or higher.
NOTE
For more wiring information refer to the SolarEdge
Recommended AC Wiring Application Note , available on the
SolarEdge website at
https://www.solaredge.com/sites/default/files/application-note-
recommended-wiring.pdf
Chapter 5: Connecting the AC and the Strings to the Connection Unit 37
EV Charging Single Phase Inverter Guide MAN-01-00404-1.2