0.25 0.5 0.75 1.0 1.5 mm
2
Perm. sensor cables (copper)
with cross-sectional area:
Max. length:
20
40 60 80 120 m
Relay outputs
Rated current range
Max. switch-on current
Max. total current (all relays)
Rated voltage range
AC 0.02…2 (2) A
15 A for
≤1 s
AC 6 A
AC (24...230) V (for potentialfree outputs)
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
Interfaces
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
Degr
ee of protection and
safety class
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
Standards, safet
y, EMC,
etc.
Storage to EN 60721-3-1 class 1K3, temp. -20…65 °C
Transport to EN 60721-3-2 class 2K3, temp. -25…70°C
Operation to EN 60721-3-3 class 3K5, temp. 0...50°C (non-condensing)
Clim
atic conditions
Without packaging 293 g
Weight
8.3 Operator and room unit AVS37... / QAA7x… /
QAA55..
Po
wer supply
For devices
without batteries:
Bus power supply
BSB
For battery-powered devices:
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
Room temperature
measure
ment (only with
QAA7x...)
/ QAA55...)
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
Interfaces
Degr
ee of protection and
safety class
Degree of protection of housing to
EN 60 529
IP20 for QAA7…
IP40 for AVS37… IP20 (when mounted)
normal pollution
244/258
Siemens Switzerland Ltd User manual RVS61.843, RVS41.813 CE1U2355en_02
HVAC Products 8 Technical data 28. September 2009
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