General
Other bus systems	free@home
Mounting method	Flush mounted (plaster)
Number of input channels	4
Number of inputs	4
Number of output channels	4
Degree of protection (IP)	IP20
Bus system KNX
Bus system KNX radio
Bus system radio frequent
Bus system LON
Bus system Powernet
Bus connection included

Binary input, 4-way, flush-mounted.
Conventional buttons or auxiliary contacts can be connected to 4 channels.
The information from the contact query can be used to control Busch-free@home® actuators or to record status information.
The contact query voltage is provided by the binary input itself.
The connection cables can be extended by a maximum of 10 m.
Flush-mounted device for installation in a 60 mm device or junction box.
The bus connection is made via the included bus terminal.
Programming only when the bus voltage is applied via the web interface of the system access point.
Further information on commissioning and operation can be found in the system manual and the online operating manual.