Connection To The Multifunction Relay - SMA Sunny Tripower CORE1-US Instructions D'installation

SMA Solar Technology AG
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.
Inverter 1:
Grid relay closed
Inverter 2:
Grid relay open
Inverter n:
Grid relay open
Figure 11 : Wiring diagram for signaling the switching status of the grid relay (example)
6.4.4

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)
Installation Manual
B F
1 2 3
B F
2
1 3
B F
2
1 3
6 Electrical Connection
max. 30 V
DC
Signal to
1 kΩ
grid operator
=
STP33-62-US-41-IA-xx-13 39