Data Sheet for Product

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Siemens RDF302… Flush-mounted room thermostats with RS485 Modbus communications CE1N3079en
Smart Infrastructure 2020-02-21
Type summary
1)
Selectable: ON/OFF or 3-position
For input and output difference between RDF302, RDF302/VB and RDF302.B, see
page 15.
Ordering
· When ordering, indicate both product number / SSN number and name:
E.g. RDF302 / S55770-T238 Modbus room thermostat
· Order valve actuators separately.
Equipment combinations
Description Product no.
Data
sheet
Cable temperature sensor or
changeover sensor,
cable length 2.5 m
NTC (3 kW at 25 °C)
QAH11.1 1840
Room temperature sensor
NTC (3 kW at 25 °C)
QAA32 1747
Cable temperature sensor
cable length 4 m
NTC (3 kW at 25 °C)
QAP1030/UFH 1854
Condensation monitor / Dew point
monitor
QXA2601 /
QXA2602 /
QXA2603 /
AQX2604
3302
Electromotoric ON / OFF actuator SFA21... 4863
Electromotoric ON / OFF valve and
actuator
(only available in AP, UAE, SA and IN)
MVI… / MXI…
A6V112
51892
Zone valve actuator
(only available in AP, UAE, SA and IN)
SUA… 4832
Thermal actuator (for radiator valves) STA23... 4884
Thermal actuator
(for small valves 2.5 mm)
STP23... 4884
Electrical actuator, 3-position
(for radiator valves)
SSA31... 4893
Electrical actuator, 3-position
(for 2- and 3-port valves / V…P45)
SSC31… 4895
Electrical actuator, 3-position
(for small valves 2.5 mm)
SSP31… 4864
Electrical actuator, 3-position
(for small valves 5.5 mm)
SSB31... 4891
Product
number
Stock
number
Operating voltage
Control outputs
Suitable
conduit box
Color
3-pos ON/OFF
RDF302 S55770-T238 AC 230 V 1
1)
2
1)
square White
RDF302/VB S55770-T428 AC 230 V 1
1)
2
1)
square Black
RDF302.B S55770-T416 AC 230 V 1
1)
2
1)
square White
ON / OFF actuators
3-position actuators