SMA SUNNY TRIPOWER CORE1-US - Connection to the Multifunction Relay

6 Electrical Connection
SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1136
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 10: Wiring diagram for signaling the switching status of the grid relay (example)
6.5.4 Connection to the Multifunction Relay
Additionally required material for the use of conduits (not included in the scope of
delivery):
☐ Conduit (trade size: 27mm (1in) or smaller with suitable reducer bush)
☐ Rain-tight or conduit fittings for wet locations complying with UL514B (trade size: 27mm
(1in) or smaller with suitable reducing bush)
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