Siemens Desigo RXB Technical Manual page 45

Terminal cover
Label
(example for RXB21.1)
Note
Connection terminals
Warning!
Siemens
Building Technologies
Terminal covers (RXZ20.1) are available as an option, to protect the connection
terminals from physical contact and dirt. The programming LED remains visible when
the terminal covers are in place, and the programming pin can be operated with a
pointed implement. The cable is connected to the room controller by breaking out the
perforated cable entry guide.
Identification number
(unique serial number)
ID in bar-code form, code 128
Protection standard
Temperature range
(0 ... 50 °C)
Serial No.
Test date, series
(Z, A, B, C...)
Observe notes
in this document
Activated application
Location
Options for use of the labeling fields "Appl." and "Loc.":
 Handwritten identification of the location and the activated application group.
All terminals are detachable plug-in screw-terminals. To avoid incorrect wiring,
terminals which can be connected to AC 230 V (relay outputs) are physically separate
from the other terminals.
The cable restraints on the housing base must be used
for the connections to terminals 19 ... 28 (AC 230 V).
The conductors must be secured with cable ties (see
diagram).
Ensure that the power is off before inserting or
removing plug-in terminals connected to a mains
voltage.
RXB21.1, RXB22.1 Room controllers
Removing the terminal cover
060215B 513
010025CA9900
5/16
CM2N3873en_06
02 Apr 2010