KROHNE OPTISWITCH 3200C Contactless EN - Manual (Page 19)

the electronics would be destroyed if connected directly to the
mains. It is not suitable for connection to low voltage PLC
inputs.
Domestic current is temporarily lowered below 1 mA after
switching off the load so that contactors, whose holding current
is lower than the constant domestic current of the electronics,
are reliably switched off.
1
Fig. 11: Wiring plan
1 Screen
OPTISWITCH 3200 C - with contactless electronic switch 19
Connecting to voltage supply
29956
-EN
-060830