
GAMMA instabus
Technical Product Information
March 2008
DELTA profil Pushbutton single UP 241, neutral 5WG1 241-2AB_1
UP 242, with I/O symbols 5WG1 242-2AB_1
Pushbutton double UP 243, neutral 5WG1 243-2AB_1
UP 244, with I/O symbols 5WG1 244-2AB_1
Pushbutton quadruple UP 245, neutral 5WG1 245-2AB_1
UP 246, with I/O symbols 5WG1 246-2AB_1
DELTA style Pushbutton single UP 285, neutral 5WG1 285-2AB_1
Pushbutton double UP 286, neutral 5WG1 286-2AB_1
Pushbutton quadruple UP 287, neutral 5WG1 287-2AB_1
Technical Manual UP 24x-28x_Taster, 7 pages Siemens AG
Automation and Drives Group
Update: http://www.siemens.de/gamma ©Siemens AG 200 Electrical Installation Technology
Subject to change without prior notice P.O. Box 10 09 53, D-93009 Regensburg
2.16.1.5/4
Installation instructions
•The device can be used for permanent interior instal-
lations, in dry rooms and for insertion in flush-type
boxes.
VDANGER
•The device may only be installed and commissioned
by an authorized electrician.
•The device may not be inserted in the same box as
230 V devices.
•The device may be used in switch sockets, if VDE
approved devices have been used.
•The prevailing safety and accident regulations must
be observed.
•The device may not be opened.
•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
•via the flush-mounted bus coupler
Operating elements
•1, 2 or 4 pairs of rockers, idle in the middle position
•Number of switching cycles: > 20,000
Display elements
•per pair of pushbuttons 1 LED red for status display
e.g. pushbutton quadruple = 4 LEDs
•1 LED red for orientation light
Connections
•10-pole plug connector (PEI): for connection to the
flush-mounted bus coupler
Mechanical data
•Housing: plastic
•Dimensions:
- DELTA profil (L x W x D ): 65 x 65 x 11 mm
- DELTA style (L x W x D ): 68 x 68 x 14 mm
•Weight: approx. 40 g
•Fire load: approx. 950 kJ ±10 %
•Mounting: placed on the flush-mounted bus coupler
Electrical safety
•Degree of pollution (according to IEC 60664-2): 2
•Type of protection (according to EN 60529): IP 20
•Protection class (according to IEC 61140): III
•Overvoltage category (according to IEC 60664-1): III
•Bus: safety extra-low voltage SELV DC 24 V
•Device complies with EN 50090-2-2 and
IEC 60664-1: 1992
Reliability
•Rate of failure: 27 fit at 40oC
EMC requirements
•complies with EN 50081-1, EN 61000-6-2 and
EN 50090-2-2
Environmental conditions
•Climatic withstand capability: EN 50090-2-2
•Ambient operating temperature: - 5 ... + 45 °C
•Storage temperature: - 25 ... + 70 °C
•Relative humidity (not condensing): 5 % to 93 %
Markings
•KNX / EIB
CE mark
•in accordance with the EMC guideline (residential and
functional buildings) and the low voltage guideline