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
Packaging and packing aids can be recycled and should always be disposed of for reuse.
The product itself shall not be disposed of as normal domestic waste.
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 VDC and 52 VDC. The output voltage is adjusted by means of a potentiometer UA
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 VDC with a max. output current of 10 A.
In the output voltage range 12 to 52 VDC, the power output is limited to a maximum of 120 W (see characteristic curve, page 6).
The current can be limited to between 2 A and 10 A. Current limitation is set by means of a potentiometer IAmax (see page 2 for position) or
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:
< 32A, 0.8A2s
Recommended circuit-breaker on supply side
6A characteristic. C.
Input current at 120/230 V:
2.2/1.3A
Power consumption:
138 W
Weight
0.75kg
Output variables
DC output voltage:
As delivered conditions: 24 V ±1% (rated voltage),
adjustable by means of screwdriver at potentiometer UA
(front of device. For position, see page2) in the range 3
to 52 V
Ripple content of output voltage:
< 50 mVss ripple
< 100 Vss spikes
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
IAmax (front of device. For position, see page 2) in the
range 2 to 10 A.
Environment
Temperature
For storage and transport: -40 to +85 °C
For operation from 97-132 V and 195-264 V: 0 to +60°C
For operation from 170-180 V: derating tamb +1K / VAC
for operation from 85-90 V: derating tamb +2K / VAC
Humidity class :
acc. to EN 60721 class 3K3
Pollution degree 2
Protection and monitoring function
Current limitation: typ. 1.1 x Prat
Response to short-circuit (output):
automatic restart
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 EN 60529
Protection class: 1 to EN 61140
Safety to EN 60950-1: SELV
Emission: acc. to EN 61000-6-3, RI suppression
acc. to EN 55022, limit curve B
Noise Immunity: acc. to EN 61000-6-2
Limitation of input-current harmonics:
acc. to EN 61000-3-2 Class D
cULus (UL 508), File E143289
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!