Technical Data - Siemens Albatros2 Technical Manual

9

Technical data

QAA74
9 Technical data
9.1 QAA74
Power supply
Wiring of terminals
Room temperature
measurement
Room humidity measurement
(QAA74.614 only)
Interfaces
Classification as per
EN 60730
Housing
Standards, guidelines
82
Siemens
Building Technologies
Via bus (2-wire)
Via controller (3-wire)
With external power supply (3-wire)
- Power consumption
- Power limitation (external power
supply)
Power supply and bus
NOTICE
Overload during short circuit.
Incorrectly sized cable cross sections can be overloaded during a short circuit.
● Use the cable cross sections as per national regulations.
Measuring range
as per EN12098:
- Range 15...25 °C
- Range 0...15 °C or 25...50 °C
Resolution
Measuring range
Bus.
Maximum wire length controller/room
unit
USB
Degree of pollution
Design type
Protection as per EN 60529
Electromagnetic compatibility
(application range)
EU conformity (CE)
Graphical User Interface UI400
Bus power BSB
DC 12 V (to connection G+ on the controller)
DC +12 V SELV
36 mA
1 A
Solid wire or stranded wire (twisted or ferrule).
0.25...1.5 mm
2
0...50 °C
Within a tolerance of +/-0.5 K
Within a tolerance of 0.8 K
0.1 K
10...90% (relative humidity)
BSB-W,
2-wire connection, non-interchangeable
200 m
Type Mini-B
2
Safety class III (for proper installation)
IP40
- Mounted
For residential, commercial, and industrial
environments.
T7471x5
CE1U2348en
2014-06-03