Data Sheet for Product

14 / 18
Siemens RDF302… Flush-mounted room thermostats with RS485 Modbus communications CE1N3079en
Smart Infrastructure 2020-02-21
Operational data Switching differential, adjustable
Heating mode (P30)
Cooling mode (P31)
2 K (0.5...6 K)
1 K (0.5...6 K)
Setpoint setting and range
Comfort (P08)
Economy (P11-P12)
Protection (P11-P12)
21 °C (5...40 °C)
15 °C / 30 °C (OFF, 5...40 °C)
8 °C / OFF (OFF, 5...40 °C)
Multifunctional input X1/X2
**)
Input X1 default value (P38)
Input X2 default value (P40)
Selectable 0...8
3 (Op. Mode switchover)
1 (External temp. sensor)
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
Environmental
conditions
Storage
Climatic conditions
As per IEC 60721-3-1
Class 1K3
Transport
Climatic conditions
As per IEC 60721-3-2
Class 2K3
Operation
Climatic conditions
As per IEC 60721-3-3
Class 3K5
1)
Standards and
directives
EU Conformity (CE) CE1T3079xx
*)
RCM A5W90002895
*)
Safety class II as per EN 60730-1
Pollution class Normal
Degree of protection of housing IP 30 as per EN 60529
Housing flammability class according to UL94 V-0
Environmental
compatibility
The product environmental declaration CE1E3079en (RDF302)
*)
, A5W00085839A
(RDF302/VB)
*)
, A6V11610192 (RDF302.B)
*)
contains data on environmentally
compatible product design and assessments (RoHS compliance, materials
composition, packaging, environmental benefit, disposal).
General Connection terminals Solid wires or prepared stranded
wires 1 x 0.4…1.5 mm
2
Housing front color RAL 9003 white
RAL 9004 black
Weight without / with packaging 0.174 kg/0.261 kg
*
)
The documents can be downloaded from http://siemens.com/bt/download.
**)
RDF302.B does not have inputs X1 and X2. Parameters related to X1 and X2 input functions
are not applicable to RDF302.B.
1)
No condensation is allowed.