Installation Instructions; Technical Specifications - Siemens SITOP Instrucciones De Uso

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Installation instructions:

To ensure proper heat dissipation, the device is to be installed vertically with the input and output terminals pointing
downward. A clearance of at least 50 mm each is to be observed beneath and above the device. The supply voltage (24
VDC) is to be connected according to IEC 60364 and EN 50178. A protective device (fuse) and a disconnecting device to
isolate the power supply from the mains must be provided.
In the case of applications in a potentially explosive environment, it is imperative to ensure that IP 54 protection degree is
achieved after installation.
Danger:
!
Before starting installation or maintenance work, turn off the main switch of the plant and secure it against restarting. Under
no circumstances must the device be opened. Nonobservance may result in touching of live parts in the interior of the device,
which may lead to death or severe personal injury.
Description and design:
The SITOP Power Supply 12 V/2.5 A is a built-in unit according to EN 60950. When installing the device, observe the
relevant DIN/VDE regulations or national standards.
Primary-switched power supplies for installation on a standard mounting rail acc. to DIN EN 50022-35x15/7.5.
For hard-wired connection to 24VDC systems. The supply voltage must be electrically isolated (SELV or PELV) from the
incoming a.c. system.
+12 VDC output voltage, floating, short-circuit- and open-circuit-proof.
It is permissible to connect two devices of the same type in parallel to increase output power (condition: The difference
between the output voltages should be < 0.2 %, and the line impedance to the load should be identical).

Technical specifications:

Unless otherwise specified, the data below apply for 24 VDC input voltage and +25 °C ambient temperature. Subject to
change without prior notice.
Type:
Order no.:
Input ratings:
Input nominal voltage U
Range of working voltage, static:
Range of working voltage, dynamic:
Input nominal current I /
i
Max. input current:
Fusing in the incoming mains lead
recommended (IEC 898):
Output specifications:
Output nominal voltage U
Residual ripple/spikes:
Setting range:
Output nominal current I
- Range up to 60 °C at ≤ 12 VDC
Current limiting threshold:
Efficiency at full load:
Ambient conditions:
Storage / transport temperature:
Ambient temperature during
operation:
Degree of protection:
Degree of contamination:
Humidity class:
EMC noise emission:
EN 55022:
EMC interference immunity:
Safety:
Class of protection:
Electrical isolation
Siemens AG Deutschland
12 V/2.5 A
6EP1621-2BA00
: 24 VDC
i
18.5 ... 30.2 VDC
18.0 ... 35.0 VDC
1.6 A /
3A
10 A, B characteristic
: 12 VDC
o
< 100/200 mV
12 ... 14 VDC
: 2.5 A
o
0...I
o
typ. 3.3 A
typ. 80 %
- 40 °C... +85 °C
0 °C ... +60 °C
IP 20
2
Climatic category 3K3 acc. to EN 60721, relative humidity 5...95 %,
non-condensing
EN 61204-3; EN 61000-6-3
Class B
EN 61000-6-2, EN 61000-4-2/-3/-4/-5/-6
II
SELV output voltage acc. to EN 60950 for 50 V rated insulation voltage (test
ss
5/12 SITOP smart