12/14
Siemens
Room temperature controller with LCD
N3075en
Building Technologies
17.04.2009
Technical data
Operating voltage
RDX33.21
DC 3 V
Alkaline batteries AA 2 x 1.5 V
Operating voltage
RDX43.2
Frequency
Power consumption
AC 230 V +10/-15%
50/60 Hz
Max. 8 VA
Control outputs RDX33..
Q13-Q14
Q21-Q22
The total of all output currents
(on Q1x and Q2x) shall not exceed 5 A
Control outputs RDX43..
Q13-Q14
Q33-Q34
Q21-Q22-Q24
The total of all output currents
(on Q1x, Q2x and Q3x) shall not exceed 4 A
AC 230 V / max. 4 A
AC 24…230 V / max. 4 A
or SELV DC min.5 V / 0.1 A
max.30 V / 0.5 A
AC 230 V / max. 3 A
AC 230 V / max. 3 A
AC 24…230 V / max. 3 A
or SELV DC min.5 V / 0.1 A
max.30 V / 0.5 A
Built-in room temperature sensor
NTC
Switching differential (adjustable from 0.5...4 K)
Heating mode (factory setting)
Cooling mode (factory setting)
2 K
1 K
Setpoint setting range
C
omfort mode
Energy Saving mode
Protection mode
5...40 °C
OFF, 5...40 °C
OFF, 5...40 °C
Factory settings for setpoints
Comfort mode
Energy Saving mode H/C
Protection mode (H/C mode)
20 °C
16 °C / 28 °C
8 °C
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C
Temperature calibration range (P07)
0…49 °C
< ± 0.5 K
± 3.0 K
Resolution of settings and display
Setpoints
Display of current temperature
0.5 °C
0.5 °C
Operation
Climatic conditions
Temperature
Humidity
To IEC 721-3-3
Klasse 3K5
0...50 °C
<95% r.h.
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
To IEC 721-3-2
Class 2K3
−
25...60 °C
<95% r.h.
Class 2M2
Storage
Climatic conditions
Temperature
Humidity
To IEC 721-3-1
Class 1K3
−
25...60 °C
<95% r.h.
conformity to
EMC directive
2004/108/EEC
2006/95/EEC
Power supply
Outputs
Sensor
Operational data
Environmental
conditions
Norms and standards
