Grundfos IO 50 SQFlex Installation And Operating Instructions Manual page 11

Appendix A
A.1. Appendix
Wiring diagram, one DC conductor earthed
IO 50
PE
1
Wiring diagram, floating DC supply or AC connection
IO 50
PE
146
~ ~
~ ~
- + +
1
Pos.
1
2
PE
2
Pos.
1
2
PE
-
2
Description
Solar Module
SQ Flex
Description
Solar Module /
AC Source
SQ Flex