Installation Manual
Reporting the switching status of the grid relay
The multifunction relay can trip a signal to the grid operator as soon as the inverter connects to the
utility grid. To enable this function, the multifunction relays of all inverters must be connected in
parallel.
Figure 13 : Wiring diagram for signaling the switching status of the grid relay (example)
6.5.4 Connection to the Multifunction Relay
Additionally required material (not included in the scope of delivery):
☐ Conduits: 21mm (0.75in) or smaller with a proper reducing bush
☐ Rain-tight conduit fittings for wet locations complying with UL 514B: 21mm (0.75in) or
smaller with a proper reducing bush
6 Electrical Connection
SMA Solar Technology America LLC
Installation manualSB5.0-6.0-1SP-US-40-IA-xx-1040
ENGLISH