Connecting the contacts to the binary input and KNX connection
Never connect mains voltage (230 V) or other external voltages to the extension inputs. Connecting an external voltage jeopardizes the electrical safety of the entire KNX/EIB system (SELV/no galvanic isolation)! Persons may be exposed to danger, equipment and facilities may be destroyed.
Ensure a distance of at least 4 mm between the low voltage lines (bus and extension inputs) and the load lines (230 V).