Burkert 8400 Manuel D'instructions page 15

4.3.3 Version with relay output
Common
NO
Wiring of the DIN43650
connector, relay output
(*) Functional earth
8400
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Not connected
1
3
NC
2
Operating safety
When the voltage at the relay terminals is higher than 24 V and the
connectors are not correctly plugged-in and tightened, there is a risk to
electrocute yourself.
Always check all the connectors to ensure the good operating of the
device.
Not connected
(*)
V+
Wiring of the M12 connector
(12-30 VDC power supply)
15
0 V
4 3
5
1
2
Not connected