Technical data

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Siemens RDG400KN Room thermostat with KNX communications CE1N3192en
Building Technologies 01 Jun 2010
Interface type KNX, TP1-64
(electrically isolated)
Bus current 20 mA
Bus topology: See KNX manual (reference documentation, see below)
Switching differential, adjustable
Heating mode (P30)
Cooling mode (P31)
2 K (0.5...6 K)
1 K (0.5...6 K)
Setpoint setting and setpoint range
Comfort (P08)
Economy (P11-P12)
Protection (P65-P66)
21 °C (5…40 °C)
15 °C/30 °C (OFF, 5…40 °C)
8 °C/OFF (OFF, 5…40 °C)
Multifunctional inputs X1 / D1
Input X1 default value (P38)
Input D1 default value (P42)
Selectable (0...8)
1 (Ext. temperature sensor,
room or return air)
3 (Operating mode
switchover)
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C
Temperature calibration range
0…49 °C
< ± 0.5 K
± 3.0 K
Settings and display resolution
Setpoints
Current temperature value displayed
0.5 °C
0.5 °C
Operation
Climatic conditions
Temperature
Humidity
IEC 721-3-3
Class 3K5
0...50 °C
<95% r.h.
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
IEC 721-3-2
Class 2K3
 25... 60 °C
<95% r.h.
Class 2M2
Storage
Climatic conditions
Temperature
Humidity
IEC 721-3-1
Class 1K3
 25... 60 °C
<95% r.h.
KNX bus
Operational data
Environmental conditions