Connecting a Switch to a Relay
Granted, I don't read German, and it took a bit of guess work, but considering they are standardish parts, this should be correct. Your switch is not the same kind of illuminated switch used in the circuit you show. But it can be wired the same.

Battery positive to the C (Common) pin. Connect the + on the switch to the NO pin. Connect the relay pin 85 to the NO pin as well. The battery negative should go to the Relay Pin 86 AND the switch pin -.

The rest of the circuit is as normally connected (Battery Positive to the Switch's C pin and the Relay pin 30, etc etc.







simulate this circuit &ndash; Schematic created using CircuitLab