Advertisement
Available languages
Available languages
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
should work on or near this equipment.
The product will function correctly and safely only if it is properly transported, stored, set up and installed.
The main switch must be switched off and secured against reconnection prior to installation or maintenance of the equipment. Failure to
disconnect the main switch means that contact with live parts could result in death or severe personal injury.
To operate the unit in 120V mode, a jumper must be inserted between the two "Jump 120VAC" terminals. This jumper must have the same
cross section and insulation as the mains supply cable. It must not be longer than 100 mm.
Important: The optional jumper also carries hazardous voltage!
IMPORTANT
Only qualified personnel may open the device. Electrostatically sensitive components
Description and design
The SITOP 24V/ 40A power supplies is a chassis-mounted unit. The device must be installed in accordance with the relevant DIN/VDE standards or national
codes of practice. The 24V/40A PS can be operated on public low-voltage systems only with additional measures as specified within the scope of EN 61000-3-
2. The equipment is to be provided with fixed connecting leads.
Primary switched-mode power supply for connection to 1-phase AC systems or to 2 phases of three-phase systems (TN, TT or IT systems in accordance with
VDE 0100 T 300 / IEC 364-3) with rated voltages 120 V / 230V , 50/60Hz; output voltage +24V DC, floating, short-circuit proof and stable at no load.
Technical data
6EP1337-3BA00
Input variables
Rated input voltage U
:
e
AC 120 / 230V,
50/60Hz
Operating voltage range:
85-132/176-264V
Surge resistance:
750V
/ 1,3ms
p
1)
Mains buffering at 120/230V
:
20ms
Input current I
at 120/230V:
e
15/8.0A
rms
Making current limitation (25°C) standard
2
<125A, <26A
s
Recommended circuit-breaker characteristic C
(or D),
20A (10A)
A two-pole coupled line-protection circuit-breaker
must be provided as a protection device for two-
phase operation on 2 outer conductors of a three-
phase system.
Efficiency at full load (typical):
88%
Power consumption (active power):
1091W
Installation instructions
Mount on standard DIN rail DIN EN 50022-35x15/7.5. To ensure proper cooling, the device must be mounted vertically such that the input and output terminals
are at the bottom. A clearance of 50 mm in each case must be left above and below the device.
The supply voltage connection (AC 120V/230V) and the optional jumper for the 120V range must be made in accordance with VDE 0100 and VDE 0160. A
protective device (circuit-breaker) and interrupter must be provided for safe disconnection of the power supply. If the power pack is operated between phases
L1 and L2, and an r.c.d. is used as protection against direct or indirect contact, then the r.c.d. must be a universal device (type B).
Parallel operation and selectable short-circuit behavior
Selector switch
Function
A
For load distribution in parallel operation, the devices can be switched from single mode (switch setting OFF) to parallel mode (switch
setting ON). Switch setting ON produces an inclined output characteristic
B
In switch setting OFF (constant current mode), the device supplies a constant current of about 1.15 x rated current in the case of an
overload/short circuit. In switch setting ON (shutdown mode), the device is shut down if it is overloaded for more than about 100 ms. This
status can be reset by Power OFF for at least 5 seconds followed by Power ON.
Connection and terminal assignments
Terminals
Function
L1, L2 (N)
Input voltage AC 120V.. 230 V
PE
PE conductor
Jump 120VAC
Jumper for 120V mode
1, 2
DC 24 V output voltage
1) Supplementary module 6EP1961-3BA00 is available for longer mains buffering periods up to max. 3 s and supplementary module 6EP1961-3BA10 for
annunciation signals (input voltage, output voltage) and remote ON/OFF circuit.
SIEMENS AG ÖSTERREICH, 09.2003
Output variables
Output DC voltage U
:
a
Delivery state: 24V ±1%
Setting range: 24V to 28.8V, set via potentiometer
on front of unit (see page 2 for position)
Derating at U
> 24V:
a
4% I
or 3°C t
/ V U
(see page 8)
a
amb
a
Output voltage ripple:
<100mV
residual ripple
pp
<200mV
peaks
pp
Direct output current I
:
a
0-40A (derating in <120V operation see page 8)
Two identical devices can be connected in parallel
to increase the power output. Switchover of output
characteristic using selector switch A (see page 2
for position).
Environment
Temperature
for storage and shipment:
-25°C to +85°C
for operation:
0°C to +60°C
Humidity rating according to climatic category 3K3
to EN 60721, Part 3; no condensation
Natural air cooling
Pollution degree 2
Weight
2.9kg
(see page 2 for selector switch position and setting)
Terminal capacity
Remarks
2
0.2...4mm
Screw-type terminals: Use a screwdriver with blade width of 3.5mm.
Recommended tightening torque 0.5...0.6Nm (5-7 Lb-in)
Use copper wire rated 65 / 75°C
2
0.33...10mm
Screw-type terminals: Use a screwdriver with blade width of 5mm.
Recommended tightening torque 1.2 Nm (18 Lb-in)
4/8
Protective and monitoring
functions
Static current limitation: Typ. 1.15 x I
Behavior under short-circuit conditions (output):
Constant current / shutdown, can be switched over
via selector switch B (see page 2 for position)
Signaling:
LED green:
Output voltage >20.5V
LED amber:
Overload, output
voltage < 20.5V
(in "Constant current"
mode only)
LED red:
Latched shutdown
(in "Shutdown"
operating mode only)
or Remote Off via
supplementary
module 6EP1961-
3BA10
1)
Annunciation signals
Standards
Degree of protection: IP20 to IEC 529
Protection class 1
Safety to VDE 0805 (EN 60950): SELV
Safety separation afforded according to EN60950;
EN 50178;VDE 0100 Part 410; EN61140+EN
60947-1 (equivalent to VDE 0140+VDE 0660 Part
100, replacing VDE 0100 Part 101); UL508; CSA
C22.2
Interference emission to EN50081-1
RI suppression according to EN 55022, limit-value
curve B
Interference immunity to EN 61000-6-2
SITOP modular 40A 1/2phasig
English
a
Advertisement
