What are S1, S2,and S3 in the LH4N2 wiring diagram?

Issue:
S1, S2 and S3 buttons wiring diagram indication in LH4N2.

Product Line:
LH4N

Environment:
All

Cause:
Control wiring circuit

Resolution:
The S1, S2, and S3 are switch designations in the recommended wiring schemes. When these switches are wired as indicated the S1 is for freewheel stop operation, S2 is for soft start operation FWD, and S3 is for soft start REV.

Released for:Schneider Electric UK