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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products Operator unit and room units AVS37... / QAA7x… / QAA55.. 23. August 2007
Relay outputs
Rated current range
Max. switch-on current
Max. total current (of all relays)
Rated voltage range
AC 0.02…2 (2) A
15 A for
1 s
AC 6 A
AC (24...230) V (for potential-free outputs)
BSB
Max. cable length
Basic unit – peripheral device
Max. total length
Min. cross-sectional area
2-wire connection, not interchangeable
200 m
400 m (max. cable capacitance) 60 nF)
0.5 mm
2
Degree of protection of housing to EN 60
529
IP 00
Safety class to EN 60 730 low-voltage-carrying parts meet the
requirements of safety class II, if correctly
installed
Degree of pollution to EN 60 730 Normal pollution
CE conformity to
EMC directive
- Immunity
- Emissions
Low-voltage directive
– Electrical safety
89/336/EEC
- EN 61000-6-2
- EN 61000-6-3
73/23/EEC
- EN 60730-1, EN 60730-2-9
Storage to IEC721-3-1 class 1K3 temp. -20…65 °C
Transport to IEC721-3-2 class 2K3 temp. -25…70°C
Operation to IEC721-3-3 class 3K5 temp. 0...50 °C (non-condensing)
Without packaging 293 g
8.3 Operator unit and room units AVS37... /
QAA7x… / QAA55..
For devices without batteries:
Bus power supply
BSB
For devices with batteries:
Batteries
3 pcs
Type of batteries
1.5 V alkaline, size AA (LR06)
Battery life
approx. 1.5 years
Measuring range 0...50 °C
According to EN12098:
Range 15...25 °C
range 0..15 °C or 25...50 °C
resolution
within tolerance of 0.8 K
within tolerance of 1.0 K
1/10 K
AVS37../QAA75../QAA55..
Max. cable length basic unit – peripheral
device
BSB-W,
2-wire connection, not interchangeable
QAA75../QAA55.. = 200 m
AVS37.. = 3 m
QAA78... BSB-RF
frequency band 868 MHz
Degree of protection of housing to EN 60
529
IP20 for QAA7../ QAA55..
IP40 for AVS37… IP20 (when mounted)
Normal pollution
Safety class to EN 60 730
low-voltage-carrying parts meet the
requirements of safety class III, if correctly
installed
Degree of pollution to EN 60 730
Normal pollution
Outputs
Interfaces
Degree of protection and
safety class
Standards, safety, EMC,
etc.
Climatic conditions
Weight
Power supply
Room temperature
measurement (only with
QAA7x...)
/ QAA55...)
Interfaces
Degree of protection and
safety class
170


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