9 / 12
Siemens
RXB39.1 – Room controller
CM2N3875en_04
Building Technologies
2013-06-16
Cable connections
Connection terminals for signals and power supply Solid or stranded conductors
0.25 … 2.5 mm
2
or 2 x 1.5 mm
2
KNX bus connection terminals
Solid or stranded conductors 2 x max. 1.0 mm
2
e.g. YCYM 2x2x0.8
Single cable lengths
For field devices, see also the RXB / RXL
installation guide, CA110381
Signal inputs D1 … D4
Max. 100 m with diameters
0.6 mm
Measured value input B1, B2
Max. 100 m
0 … 10 V outputs YC1, YC2 (valve actuators)
Max. 100 m where A
1.5 mm
2
0 … 10 V outputs YC3 (fan)
Max. 100 m where A
1.5 mm
2
Relay outputs Q14, Q34
Depends on load and local regulations
Interface to room unit
Max. 115 m where A= 0.75 mm
2
(including connecting cable for tool)
Cable type
4-core, twisted pair, unscreened
KNX bus
Max. 1000 m (see Engineering, page 6)
Tool connecting cable
Max. 3 m
Housing
protection standard
Protection standard to EN 60529
IP30 with terminal cover fitted and
wall mounted without DIN rail
IP20 for all other mounting arrangements
Protection class
Suitable for use in systems with protection class I or II
Ambient conditions
Normal operation
Class 3K5 to IEC 60721-3-3
Temperature
0 … 50 °C
Humidity
< 85 % r.h.
Transport
Class 2K3 to IEC 60721-3-2
Temperature
– 25 … 65 °C
Humidity
< 95 % r.h.
Industry standards
- Product standards
EN 60730
marking
- EMC
Immunity (industrial & residential)
Emission (residential)
2004/108/EG
EN 60730-1, EN 50491-5-2, EN 50491-5-3
EN 60730-1, EN 50491-5-2
- Low Voltage Directive
Electrical safety
2006/95/EC
EN 60730-1
- RoHS
Techn. RoHS proof
2011/65/EU
EN 50581
C-Tick conformity (EMC)
AS/NZS 61000-6-3
Environmental compatibility
The product environmental declaration CM1E3876
contains data on RoHS compliance, materials
composition, packaging, environmental benefit,
disposal
ISO 14001 (Environment)
ISO 9001 (Quality)
Dimensions
See dimension diagrams
Weight
excluding packaging
0.560 kg
including packaging
0.600 kg
