Replacing The Safety Switch - SolarEdge UL1741-SA Installation Manual

NOTE
If you remove the old inverter and do not immediately install a new one, then:
Lock the Safety Switch in the OFF position using a lock on the switch.
Secure the Safety Switch bracket to the wall/pole, using 3 screws
Use insulation tape to isolate each of the AC and DC wires.
Seal the open conduits using duct tape.
Install the Safety Switch sealing cover supplied with the inverter and secure
with retaining clips.
10. Place the new inverter on the mounting brackets and secure it using the screws.
11. Insert the wires from the Safety Switch into the openings in the inverter and the
ferrite bead.
12. Fasten the two clips securing the Safety Switch to the inverter.
13. Reconnect the cables: Follow the instructions of .
14. Close the inverter and Safety Switch covers.
15. Perform the commissioning steps as described in Activating, Commissioning and
Configuring the System on page 40.

Replacing the Safety Switch

1. Turn OFF the inverter ON/OFF/P switch, and wait until the green LED is blinking,
indicating that the DC voltage is safe (<50V), or wait five minutes before continuing
to the next step.
2. Turn OFF the AC breaker of the distribution panel and the Safety Switch.
3. Open the Safety Switch cover: Release the four Allen screws and remove the cover.
4. Open the inverter cover as described in Removing the Inverter Cover on page 51.
5. Disconnect the DC wires from the inverter and the AC wires from the Safety Switch.
6. Disconnect the wires between the inverter and the Safety Switch.
Antenna cable from the communication board
RS485 and/or Ethernet connection from the communication board
Grounding cable
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.4
Appendix C: Replacing and Adding System Components 70