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WARNING
!
Hazardous voltages are present in this electrical equipment during operation. Failure to properly maintain the equipment can
result in death, severe personal injury or substantial property damage. Only qualified personnel is allowed to work on or
around this equipment. The successful and safe operation of this equipment is dependent on proper handling, installation
and operation.
The mains switch has to be switched off and prevented from being switched on again before installation or maintenance. If
these rules are not adhered to, contact with live parts or improper use can result in death or severe personal injury.
CAUTION
Electrostatic sensitive devices (ESD). Only trained personnel are permitted to open the device.
Description and design
The SITOP flexi power supply is a rail-mounted built-in unit. The relevant DIN/VDE regulations or equivalent local regulations must be
observed during installation.
Primary switched-mode power supply for connection to 120 or 230 V, 50/60 Hz single-phase AC system; the output is potential-free,
protected against short-circuit and open-circuit conditions and adjustable.
Technical method of operation
The output voltage of the device can be set to between 3 V
on the front (see page 2 for position) or externally by means of terminals X2-2 (see page 6).
The device works in the output voltage range from 3 to 12 V
In the output voltage range 12 to 52 V
The current can be limited to between 2 A and 10 A. Current limitation is set by means of a potentiometer I
externally by means of terminals X2-12 (see page 6).
Technical data
Input variables
Input voltage:
AC 120/230V, 50/60Hz
Tolerance:
85-132V
170-264V
Overvoltage proof:
acc. to EN 61000-4-1 A.2
Efficiency at full load and 230 V:
> 75%
Limitation of inrush current(25°C) standard
at 230 V:
2
< 32A, 0.8A
s
Recommended circuit-breaker on supply side
6A characteristic. C.
Input current at 120/230 V:
2.2/0.9A
Power consumption:
138 W
Weight
0.9kg
Installation notes
Mounting on standard mounting rails to DIN EN 50022-35x15/7,5. To ensure adequate cooling, the device must be installed vertically, with
the input and output terminals at the bottom. Be sure to leave a minimum free space of 50 mm ( 2 in.) above and below the device.
The supply voltage (AC 120/230 V) and necessary jumper for the 120 V range must be connected in accordance with VDE 0100 and VDE
0160. A protective device (fuse) and an isolating device for disconnecting the power supply must be provided. If the equipment is operated
in the 120 V range, a jumper must be wired between the two "AC120 V-JUMPER"-terminals. It must have the same cross-section and
insulation as the power supply cables. It must not be longer than 100 mm ( 4 in.).
!
WARNING: The necessary jumper also carries dangerous electrical voltage !
Siemens AG Österreich, 03.2001
and 52 V
DC
with a max. output current of 10 A.
DC
, the power output is limited to a maximum of 120 W (see characteritic curve, page 6).
DC
Output variables
DC output voltage:
As delivered conditions: 24 V ±1% (rated voltage),
adjustable by means of screwdriver at potentiometer
(front of device. For position, see page 2) in the range
3 to 52 V
Ripple content of output voltage:
< 50 mV
ripple
ss
< 100 V
spikes
ss
DC output current:
max. 10 A (in the range 3 to 12 V)
Output power:
max. 120 W (in the range 12 to 52 V)
Output-current limitation:
As delivered condition:10 A ±10%,
adjustable by means of screwdriver at potentiometer
I
(front of device. For position, see page 2) in the
Amax
range 2 to 10 A.
Environment
Temperature
For storage and transport: -25 to +85 °C
For operation from 97-132 V and 195-264 V: 0 to +60°C
For operation from 170-180 V: derating t
for operation from 85-90 V: derating t
Humidity class :
acc. to EN 60721 class 3K3
Natural air convection cooling
5/8
. The output voltage is adjusted by means of a potentiometer U
DC
Protection and monitoring function
Current limitation: typ. 1.1 x P
Response to short-circuit (output):
constant current characteristic and automatic
U
A
re-acceleration
Mains buffering time:
>10 ms at input voltage of 93/187 V and output
power of 120 W
Built-in fuse:
T 3,15A/250V
Regulations
Degree of protection: IP20 to IEC 529
Protection class: 1 to IEC 536
Safety to VDE 0160 and VDE 0805 (EN60950):
SELV
Emission: acc. to EN 50081-1, RI suppression acc.
to EN 55022, limit curve B
Noise Immunity: acc. to EN 50082-2 incl. Table A4
Limitation of input-current harmonics:
acc. to EN 61000-3-2
UL/cUL (UL 508/CSA 22.2), FILE143289
+1K / V
AC
amb
+2K / V
AC
amb
English
(see page 2 for position) or
Amax
rated
SITOP power flexi
A
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