Data Sheet for Product

GAMMA instabus
Technical product information
June 2020
DELTA style wall switch, single
wall switch, double
wall switch, quadruple
Siemens Switzerland Ltd RS-AA
Building Technologies Division
International Headquarters
Theilerstrasse 1a © Siemens AG 2020 Update: http://www.siemens.com/gamma
CH-6300 Zug Subject to changes
5
Commissioning
Programming mode
Press the programming key short (< 0,5 s) to enable pro-
gramming mode. This is indicated by the programming
LED.
Factory setting
When the programming key is pressed very long (> 20 s)
the device is reset to the default factory settings. This is
indicated by evenly flashing the programming LED. The
flashing stops after 5 seconds.
Note:
When the programming key is pressed longer (> 0,5 s to
2 s) no functions are activated.
When the programming key is pressed longer (> 2 s) the
device starts connection test. This is a special mode for
Desigo TRA. The device may be blocked for the manufac-
turer specific functions for approx. 10 seconds for the
programming mode. This is indicated by briefly flashing
the programming LED.
Installation notes
• The device can be used for permanent installation in
dry interior rooms and for insertion in distribution
boards or miniature housings.

WARNING
• The device must be mounted and commissioned by an
authorised electrician.
• The device may be mounted in switch and socket com-
binations if VDE-certified devices are used exclusively.
• The prevailing safety rules must be heeded.
• For planning and construction of electric installations,
the relevant guidelines, regulations and standards of
the respective country are to be considered.
Technical data
Power supply
• KNX bus voltage: via via bus coupling unit (BTM)
UP 117
• KNX bus current: 8 mA
Operating elements
• 1, 2 or 4 pairs of horizontally arranged switch buttons
• Number of switching operations: > 20000 per button
• 1 learning push button:
for toggling between normal mode / addressing mode
• for reset the device to the default factory settings and
to activate manufacturer specific functions
Display elements
• 1 red LED:
for checking the bus voltage and for displaying normal
mode / addressing mode
• This LED indicated also the reset to the default factory
settings and further activated manufacturer specific
functions
• 1 LED as orientation light in the dark
UP 28x/3 und 287/5:
• 1 red LED per switch button for status annunciation
(e.g. quadruple switch = 8 status LED’s