SIEMENS RDS120-B Smart Thermostat Instructions
Technical data
Power Supply
Power Supply
Operating voltage
Frequency
24 Vac ( 20%)
48 to 63 Hz
Power consumption
Maximum power supply current
Max. 9 VA
4A current limited
Radio Data
Radio Parameter
Frequency band
2.4 to 2.4835 GHz
18 dBm
Maximum radio-frequency power
WLAN standard
IEEE 802.11b/g/n (HT20)
1-11
WLAN channel
Inputs
Connections to Multifunctional Inputs X1 - M - X2
Passive temperature sensors
- Cable length max. (copper
cable
300 ft (90 m) (16 AWG wire), 230 ft (70 m) (18 AWG
wire)
section)
200 ft (60 m) (18 AWG wire), 130 ft (40 m) (20 AWG
wire)
- NTC type
- Ni type
- Pt type
NTC10K Type 2 Thermistor
Ni1000 at 32°F (0°C) RTD
Pt1000_375/Pt1000_385 at 32°F (0°C) RTD
Inputs, Continued
Connections to Multifunctional Inputs X1 - M - X2
Active DC 0 V to 10 V sensors
NOTE: min./max. configurable via parameters
- Room temperature range
(default)
32°F to 122°F (0 to 50°C)
- Outdoor temperature range
(default)
-32°F to 176°F (-50 to 80°C)
- Humidity range (default)
- CO2 range (default)
0 to 100%
0 to 2000 ppm
Digital contacts
- Operating action
- Contact sensing
- Parallel connection
- Input function
Selectable N.O./N.C.
DC 14 to 40 V, 8 mA (typical)
Max. 20 thermostats per switch
Selectable
Outputs
Relay Contact Capacity
Voltage
24 Vac ( 20%)
Current
Min. 0.02 A, Max. 1A per output
3
A6V11727426
06/20/2019
Siemens Industry, Inc.
Smart Infrastructure
| General | Details |
|---|---|
| Name | SIEMENS RDS120-B Smart Thermostat Instructions |
| Make | SIEMENS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.1 MB |

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