Chapter 4: Connecting The Ac And The Strings To The Safety Switch; Grid Connection Guidelines; Connecting The Ac Grid To The Safety Switch - SolarEdge SE3000H-US Installation Manual

Chapter 4: Connecting the AC and the Strings
to the Safety Switch
The Safety Switch 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.

Grid Connection Guidelines

In single phase inverters connected to corner grounded grids, connect the L2 terminal to the
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grounded conductor. When connecting to other grids, L1 and L2 are interchangeable.
The conduits, hubs and fittings must be suited for field wiring systems.
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The hubs and other fittings must comply with UL514B.
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Use the conduit and wiring appropriate for the installation location per the NEC. Outdoor
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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
http://www.solaredge.us/files/pdfs/application-note-recommended-wiring.pdf

Connecting the AC Grid to the Safety Switch

1. Remove the spring-clamp terminal instructions from inside the switch.
2. Strip 05⁄16'' (8mm) of the AC wire insulation.
3. Insert the AC conduit into the AC-side drill guide that was opened.
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00306-1.1

Chapter 4: Connecting the AC and the Strings to the Safety Switch

Figure 17: Inside the Safety Switch
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