8/11
Siemens
Temperature Controller RRV851
CE1N2725en
Building Technologies
27.08.2007
Baud rate
9.6 kbit/s
Permissible cable lengths
For bus communication
A
≥
0.5 mm²
A
≥
1 mm²
max. 60 m
max. 100 m
Type of cable
2-wire standard installation cable
(unshielded)
Note:
Twisted pair (unshielded) is recommended for enhanced
immunity to external electromagnetic interference, e.g. in the
vicinity of radio transmitters or variable speed drives
Electrical connections
(all terminals)
Connection terminals
For wires
screw terminals
0.6 mm dia. … 2.5 mm
2
Degrees of protection
Degree of protection of housing to IEC 60 529
IP 20 without terminal covers
IP 30 with terminal covers
Safety class to EN 60 730
device suited for use with equipment
of safety class II
Environmental conditions
Operation to
Climate conditions
Temperature (housing and electronics)
Humidity
Mechanical conditions
IEC 721-3-3
class 3K5
0…50 °C
5…95 % r. h. (non-condensing)
class 3M2
Transport to
Climate conditions
Temperature
Humidity
Mechanical condition
IEC 721-3-2
class 2K3
–25…+70 °C
<95 % r. h.
class 2M2
Classification to EN 60 730
Mode of operation, automatic controls
type 1B
Degree of contamination, controls Environment
2
Rated surge voltage
4000 V
Software class
A
Materials and colors
Controller housing
Polycarbonate, RAL 7035 (lightgrey)
Packaging corrugated
cardboard
Norms and standards
Product safety
Automatic electrical controls for household and
similar use
Special requirements for temperature sensing
controls
EN 60 730-1
EN 60 730-2-9
Electromagnetic compatibility
Immunity
domestic section, light industry
Emissions domestic section, light industry
EN 61 000-6-1
EN 61 000-6-3
-conformity
EMC directive
Low-voltage directive
89/336/EEC
73/23/EEC
N474
conformity to
Australian EMC framework
Radio interference emission Standard
Radio Communication Act 1992
AS/NZS 4251.1
Weight
Excluding packaging
approx. 0.735 kg
