Communication System Manual 3WN1, 3WS1 Circuit-Breakers
Version 1.0 (02/98) Copyright Siemens AG 1998. All rights reserved. 103
4.5.4 Technical data
4.5.4.1 Device data
The following table contains the technical data of the interface module.
Table 14: Technical data of interface module
No. Parameter Data Description
1 Place of installation Switchgear cubicle
ð Mounted on DIN rail
2 Degree of protection IP 20
ð Protection against ingress of
solid foreign bodies and water to
IEC 529 (DIN 40050)
3 Protection class 3
ð IEC 536 (VDE 0106-1)
ð SELV supply
4 Cooling Convection
No additional cooling necessary
5 Endurance 10 years
6 Housing dimensions 95 mm x 70 mm x 86 mm H x W x D
7 Weight 0.3 kg
8 Operating temperature
0 °C ... + 60 °C
0 °C ... + 40 °C
ð Horizontal installation (preferred)
ð Vertical installation
9 Storage/transport
temperature
- 40 °C ... + 70°C
10 Atmospheric pressure
during operation
during transport
795 hPa ... 1080 hPa
660 hPa ... 1080 hPa
11 Site altitude 2000 m
4000 m
ð No restrictions
ð Restrictions:
- ambient temperature ≤ 40 °C
12 Relative humidity 5 % ... 95 %
ð SN 31205 (IEC 68-2-30)
ð No condensation
13 Pollutant concentration
ð SO2 < 0.5 ppm;
relative humidity < 60 %
ð H2S < 0,1 ppm;
relative humidity < 60 %
ð SN 31205 (IEC 68-2-60)
(= utilization category: 3C3/1C2)
ð No condensation
14 Particles/dirt
ð Sand and dust must not be
permitted to enter the device!
15 External supply voltage 20.4 V DC ... 28.8 V DC
ð Standard power supply unit to
DIN 19240
16 Current input at 24 V DC
typ. 150 mA, max. 180 mA
17 Supply on PROFIBUS
interface
5 V DC/max. 80 mA
ð Suitable for connection of OLP
(optical link plug)
18 Reverse voltage protection Yes
ð But device is not functional!
19 Short-circuit protection Yes
20 Overload protection 0.5 A multifuse
ð Self-healing fuse
ð Reset by power OFF
21 Undervoltage detection
≤ 14 V DC
ð min. 50 ms until RESET
22 Voltage failure back-up
≥ 20 ms
ð However undervoltage detection
is triggered first at U
e
< 14V.
ð Device fully functional.
23 Insulation voltage 500 V DC
ð IEC 1131-2
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