SIEMENS AG ÖSTERREICH, 11.2013
SITOP Power 4
English
!
WARNING NOTES
Hazardous voltages are present in certain parts of this electrical equipment during operation.
Incorrect handling of the equipment can result in death, severe personal injury or substantial property damage.
Only qualified personnel are allowed to work on or around this equipment.
The successful and safe operation of this equipment is dependent on proper transport, storage and installation.
Potentiometer R230 is only allowed to be actuated using an insulated screwdriver to DIN 7437, because accidental contact
may be made with parts inside the equipment carrying dangerous electrical voltage.
CAUTION
The device may only be opened by qualified personnel.
Electrostatically sensitive device (ESD)
Description and construction
The SITOP 24V/3.8 A power supply is a built-in unit. The relevant DIN/VDE regulations or equivalent local regulations must be observed
during installation.
Primary switched-mode power supplies for mounting on a DIN EN 50022-35x15/7.5 standard rail.
For connection to 120 or 230 V, 50/60 Hz single-phase AC system.
Output v24 V DC, potential-free, short-circuit resistant and stable under no-load conditions.
Technical specifications
Input data
AC input voltage:
120/230 V 50/60 Hz
Voltage tolerance
93-132 V 187-264 V
6EP1332-2BA00
Efficiency at full load and 230 V:
>87%
Limitation of inrush current (25 °C) at 230V AC:
standard
<32 A, 0.8 A
2
s
Recommended circuit-breaker, characteristic C.
6 A
Input current at (120/230 V):
1.8/0.7 A
Power input:
111 W
Weight
0.75 kg
1.65 lb.
Output data
DC output voltage:
As delivered: 24 V
1% (rated voltage)
Adjustable with screwdriver at potentiometer R230
(on underside of device, see page 2) from 22.8 to
26.4 V
Ripple content of output voltage:
<150 mV
ss
ripple
<240 mV
ss
spikes
DC output current:
0-3.8 A
Two devices of identical design may be connected
in parallel in order to improve the output.
Environmental conditions
Temperature
Storage and transport: -40 to +85°C (-40 to
+185°F)
Operating: 0 to +60 °C (+32 to +140 °F)
Operation in parallel mode or with higher output
voltage: 0 to +50 °C (+32 to +122 °F)
Humidity rating:
according to EN 60721 Part 3 class 3K3
Pollution degree 2
Natural air cooling
Protection and monitoring
functions
Steady-state current limitation: 3.8 - 4.1 A
At rated output voltage: Pout < 100 W also on
overload
Response to short-circuit (output):
Automatic restart
Mains buffering time:
>20 ms at 93/187 V and full load
>10 ms at full load and 93/187 V for -2BA00
devices
Built-in fuse: Slow-acting
3.15 A/250 V
Standards and specifications
Degree of protection IP20 to IEC 529
Degree of protection 1 to IEC 536
Safety to EN60950: SELV
RI suppression to EN55022, limit curve B
Noise immunity: EN 50082-2 incl. Table A4
The input current harmonics are limited according
to EN61000-3-2.
UL 508 / UL1310 class 2:File E143289
UL 1950: File E151273
Installation
To ensure adequate cooling, the device must be installed vertically so that the input and output terminals are at the bottom. Be sure to leave
a minimum clearance of 50 mm (2 in.) above and below the device.
The supply voltage (AC 120/230V) and optional 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.
Before installation or maintenance work is carried out, the mains switch must be switched off and locked to prevent it from being
switched on again. If these rules are not adhered to, contact with live parts or improper use can result in death or severe personal
injury.
If the equipment is to be operated in the 120 V range, a jumper must be fitted between the two "AC 120V-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.).
Important
: The necessary jumper also carries dangerous electrical voltage!
Connections and terminal assignment
Terminals Function
Connected
load Remarks
L1, N
Input voltage AC 120/230 V
0.5 ... 2.5 m
2
Screw-type
terminals
PE
Protective earth conductor
22...12 AWG
Use a screwdriver with a blade width of 3.5 mm (0.14 in.)
AC 120V-
JUMPER
Necessary jumper for operating voltage
range 93-132V
L+, M
Output voltage DC 24 V
Recommended tightening torque 0.5 to 0.7 Nm (4.5 to 6.2lb.in.)
