User Manual

3/6
Siemens QAX39.1 – Universal setpoint adjuster CA2N1646de_04
Building Technologies 2015-12-23
Technical data
Caution
The unit is not protected against accidental connection to AC 230 V.
Power supply
Operating voltage range
DC 12...15 V
(SELV)
DC 12…15 V class 2 (US)
The unit receives its supply from the connected controller via a PPS2 interface
Power consumption (from controller)
Max. 0.10 VA
Operating data
Setpoint correction
Correction range (defined by controller)
Max. ± 12 K (basic setting ± 3K)
Ports
Type of port between controller and room unit
PPS2 (point-to-point interface, V 2
Baud rate
4.8 kBit/s
Cable connections
Connection terminals (screw terminals)
Stranded or so
lid conductors
0.8 … 2.5 mm
2
Single cable length controller
– Room unit
See Installation guidelines:
Desigo
RXC: CA110334,
Desigo
RXB & RXL: CM110381
Desigo
RXA: CA2Z3884
Desigo PX: CA110396
Cable type
2-core, twisted pair, unscreened
Protection data
Housing protection
IP 30 to EN 60529
Protection class
III to EN 60730-1
Ambient conditions
Operation
IEC 60721
Environmental conditions
Class 3K5 to IEC 60721-3-3
Temperature
0 ... 50 °C
Humidity
< 85 %rh
Mechanical conditions
Class 3M2
Transport
IEC 60721
Environmental conditions
Class 2K3 to IEC 60721-3-2
Temperature
– 25 ... 65 °C
Humidity
< 95 %rh
Mechanical conditions
Class 2M2
Standards, directives
and
approvals
Product standard
EN 60730-1
Automatic electrical controls for
household and similar use
Electromagnetic compatibility (Applications)
For use in residential, commerce, light
-
industrial and industrial environments
EU conformity (CE)
CA2T1741xx *)
UL certification (US)
UL916, http://ul.com/database
RCM-conformity (EMC)
A5W00005055 *)
EAC conformity
Eurasia conformity
Environmental
compatibility
Product environmental declaration (co
ntains
data on RoHS compliance, materials compo
-
sition, packaging, environmental bene
fit,
disposal)
CA2E1646
*)
Dimensions
See “Dimensions”
Color
Scale plate
White
Dial
RAL 9003 (white)
Weight
Excluding packaging
0.06 kg
*) The documents can be downloaded from
http://siemens.com/bt/download.