Siemens RDF880KN/NF Manual page 22

Connection terminals
X2 CE+ CE -
L X1 M
Q11 Q14 Q12
N
Connection diagrams
L
S1 S2
10 A
B1 B2
L X1 M X2
N
Q11 Q14 Q12
10 A
Lx
N
22 / 24
Siemens
Building Technologies
L, N
Q11, Q12 NC contact (for NO valves)
Q11, Q14 NO contact (for NC valves)
X1, X2
M
CE+
CE-
N1
KNX
V1
Lx
S1, S2
B1, B2
CE+ CE-
CE+
N1
CE-
5(2)A
V1
Max .
RDF880KN...
Touch Screen Flush-mount Room Thermostats with KNX Communications
Operating voltage AC 230 V
Multifunctional input for temperature sensor or potential-
free switch
Factory setting:
– X1 = Window contact
– X2 = External sensor
(function can be selected via parameter P38 / P40)
Measuring neutral for sensor and switch
KNX data +
KNX data -
Room thermostat
Valve actuator
AC 24...230 V
Switch (keycard, window contact, presence detector,
etc.)
Temperature sensor (return air temperature,
external room temperature, changeover sensor, etc.)
KNX data +
KNX data –
A6V11282546_en--_a
2018-04-19