Inputs
Miscellaneous
Siemens Building Technologies
HVAC Products
outside temperature sensor
D.h.w. sensor
Cascade flow temperature sensor
Cascade return temperature sensor
buffer storage tank sensor
H1 as an analog input with
safety extra low voltage (SELV)
H1 as an analog input with
safety extra low voltage (SELV)
Backup of time switch
Weight
Software class to EN 60 730
Basic Documentation RVA47.320
Technical data
NTC (QAC31) or
Ni 1000 (QAC21)
Ni 1000 Ω at 0 °C (QAZ21)
Ni 1000 Ω at 0 °C (QAD21)
Ni 1000 Ω at 0 °C (QAD21)
Ni 1000 Ω at 0 °C (QAZ21)
U
= (12...24) V
H1
(contact open)
I
= (2...5) mA
H1
(contact closed)
U
= (0...10 V) für 0...130 °C
in
R
= 100 kΩ
in
max. ratings 20 V; 20 mA
> 12 hours
approx. 0.5 kg
class A
161/166
CE1P2379E
15.07.2002