100 Watt DC-DC and AC-DC Converters
S Series
Features
• RoHS lead-free-solder and lead-solder-exempted
products available
• 5 year warranty for RoHS compliant products with an
extended temperature range
• Compliant with EN 50155, EN 50121-3-2
• Compliant to EN 45545 (version V108 or later)
• Class I equipment
• Extremely wide input voltage ranges from 8 to 385 VDC,
and 85 to 264 VAC, 47 to 440 Hz
• Input over- and undervoltage lockout
•
Adjustable output voltage with remote on/off
• 1 or 2 outputs: SELV, no load, overload, and short-circuit proof
• Rectangular current limiting characteristic
• PCBs protected by by lacquer
• Very high reliability
Safety-approved to the latest edition of IEC/EN 60950-1
and UL/CSA 60950-1
111
4.4"
3U
60
2.4"
12 TE
168
6.6"
Table of Contents
Description........................................................................................2
Model Selection ................................................................................2
Functional Description ......................................................................5
Electrical Input Data .........................................................................6
Electrical Output Data.......................................................................9
Auxiliary Functions .........................................................................13
Electromagnetic Compatibility (EMC) .............................................17
Immunity to Environmental Conditions ...........................................19
Mechanical Data .............................................................................20
Safety and Installation Instructions .................................................22
Description of Options ....................................................................26
Accessories ....................................................................................35
belfuse.com/power-solutions
BCD20004-G Rev AF, 12-Jul-2018
S Series
Description
100 W DC-DC and AC-DC Converters
The S Series of DC-DC and AC-DC converters represents a broad and flexible range of power supplies for use in advanced
electronic systems. Features include high efficiency, high reliability, low output voltage noise and excellent dynamic response to
load/line changes. LS models can be powered by DC or AC with a wide-input frequency range (without PFC).
The converter inputs are protected against surges and transients. An input over- and undervoltage lockout circuitry disables the
outputs, if the input voltage is outside of the specified range. Certain types include an inrush current limiter preventing circuit
breakers and fuses from tripping at switch-on.
All outputs are open- and short-circuit proof, and are protected against overvoltages by means of built-in suppressor diodes.
The output can be inhibited by a logic signal applied to pin 18 (i). If the inhibit function is not used, pin 18 must be connected with
pin 14 to enable the outputs.
LED indicators display the status of the converter and allow for visual monitoring of the system at any time.
Full input-to-output, input-to-case, output-to-case, and output to output isolation is provided. The converters are designed, built,
and safety-approved to the international safety standards IEC/EN 60950-1. They observe EN 50155 and EN 50121-3-2 and are
particularly suitable for railway applications.
The case design allows operation at nominal load up to 71 °C in a free-air ambient temperature. If forced cooling is provided, the
ambient temperature may exceed 71 °C, but the case temperature must remain below 95 °C under all conditions.
A temperature sensor generates an inhibit signal, which disables the outputs when the case temperature
T
C
exceeds the limit.
The outputs are automatically re-enabled, when the temperature drops below the limit.
Various options are available to adapt the converters to individual applications.
The converters may either be plugged into a 19” DIN-rack system according to IEC 60297-3, or mounted to a chassis.
Important:
For applications requiring compliance with IEC/EN 61000-3-2 (harmonic distortion), please use our LS4000 or LS5000 Series with
incorporated power factor correction (PFC).
Model Selection
Non-standard input/output configurations or special customer adaptations are available on request.
Table 1a: Models AS, BS
Output 1
V
o nom
[VDC]
5.1
12
15
24
12
15
24
1
2
3
4
Output 2
V
o nom
[VDC]
-
-
-
-
12
3
15
3
24
3
I
o nom
[A]
-
-
-
-
4
3.2
2
Input Voltage
V
i min
–
V
i max
8 - 35 VDC
AS1001-9RG
AS1301-9RG
AS1501-9RG
AS1601-9RG
AS2320-9RG
AS2540-9RG
AS2660-9RG
Efficiency
1
η
min
[%]
76
81
83
84
79
80
80
Input Voltage
V
i min
–
V
i max
14 - 70 VDC
BS1001-9RG
BS1301-9RG
BS1501-9RG
BS1601-9RG
BS2320-9RG
BS2540-9RG
BS2660-9RG
Efficiency
1
η
min
[%]
77
83
85
86
80
82
82
Options
4
I
o nom
[A]
16
8
6.5
4.2
4
3.2
2
-7, P, D, V ², T, B, B1, non-G
-7, P, D, T, B, B1, non-G
-7, P, D, T, B, B1, non-G
Min. efficiency at
V
i nom
,
I
o nom
and
T
A
= 25 °C. Typical values are approximately 2% better.
Option V is possible for 5.1 V output only and excludes option D.
Second output semi-regulated
Models FS, CS, DS, ES, LS are available as -7 or -9E.
NFND: Not for new designs.
Preferred for new designs
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S Series
100 W DC-DC and AC-DC Converters
Table 1b: Models FS, CS
Output 1
V
o nom
[VDC]
5.1
12
15
24
12
15
24
I
o nom
[A]
16
8
6.5
4.2
4
3.2
2
Output 2
V
o nom
[VDC]
-
-
-
-
12
3
15
3
24
3
I
o nom
[A]
-
-
-
-
4
3.2
2
Input Voltage
V
i min
–
V
i max
20 - 100 VDC
FS1001-9ERG
FS1301-9ERG
FS1501-9ERG
FS1601-9ERG
FS2320-9ERG
FS2540-9ERG
FS2660-9ERG
Efficiency
1
η
min
[%]
77
83
84
86
80
82
82
Input Voltage
V
i min
–
V
i max
28 - 140 VDC
CS1001-9RG
CS1301-9ERG
CS1501-9ERG
CS1601-9ERG
CS2320-9ERG
CS2540-9ERG
CS2660-9ERG
Efficiency
1
η
min
[%]
77
83
84
85
80
82
82
-7, P, D, V ², T, B, B1, non-G
-7, P, D, T, B, B1, non-G
Options
4
-7, P, D, T, B, B1, non-G
Table 1c: Models DS, ES, LS
Output 1
V
o nom
[VDC]
5.1
12
12.84
5
15
24
12
15
24
25.68
6
1
2
3
4
5
Output 2
V
o nom
[VDC]
-
-
-
-
-
12
3
15
3
24
3
25.68
3, 6
I
o nom
[A]
-
-
-
-
-
4
3.2
2
1.8
Input Voltage
V
i min
–
V
i max
44 - 220 VDC
DS1001-9ERG
DS1301-9ERG
DS1740-9ERG
DS1501-9ERG
DS1601-9ERG
DS2320-9ERG
DS2540-9ERG
DS2660-9ERG
DS2740-9ERG
6
5
Effic.
1
η
min
[%]
79
84
86
86
81
82
83
Input Voltage
V
i min
–
V
i max
67 - 385 VDC
-
ES1301-9ERG
-
ES1501-9ERG
ES1601-9ERG
ES2320-9ERG
ES2540-9ERG
ES2660-9ERG
Effic.
1
η
min
[%]
-
83
-
84
86
81
83
83
-
Input Voltage
V
i min
–
V
i max
88 - 372 VDC
85 - 264 VAC
LS1001-9ERG
LS1301-9ERG
LS1740-9ERG
LS1501-9ERG
LS1601-9ERG
LS2320-9ERG
LS2540-9ERG
LS2660-9ERG
LS2740-9ERG
6
5
Effic.
1
η
min
[%]
78
83
84
85
80
81
81
Options
4
I
o nom
[A]
16
8
7.5
6.5
4.2
4
3.2
2
1.8
-7, P, D, V ², T, B, B1, non-G
-7, P, D, T, B, B1, non-G
-7, P, D, T, B, B1, non-G
-7, T, B, B1, non-G
-
6
Min. efficiency at
V
i nom
,
I
o nom
and
T
A
= 25 °C. Typical values are approximately 2% better.
Option V is possible for 5.1 V output only and excludes option D.
Second output semi-regulated
Models FS, CS, DS, ES, LS are available as -7 or -9E.
Battery loader for 12 V batteries.
V
o
is controlled by the battery temperature sensor (see
Accessories)
within 12.62 – 14.12 V.
Options P, D, V are not available.
Battery loader for 24 V (and 48 V batteries with series-connected outputs).
V
o
is controlled by the battery temperature sensor
(see
Accessories)
within 25.25 – 28.25 V (50.5 – 56.5 V for 48 V batteries). Options P, D, and V are not available.
NFND: Not for new designs.
Preferred for new designs
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S Series
100 W DC-DC and AC-DC Converters
Part Number Description
CS 2 5 40 -9 E R D3 T B1 G
Operating input voltage
V
i
:
8 – 35 VDC ............................................................... AS
14 – 70 VDC ............................................................. BS
20 – 100 VDC ........................................................... FS
28 – 140 VDC ...........................................................CS
44 – 220 VDC ...........................................................DS
67 – 385 VDC ........................................................... ES
100 – 264 VAC or 88 – 372 VDC ............................. LS
Number of outputs ............................................................1, 2
Nominal voltage of output 1 (main output)
V
o1 nom
5.1 V .....................................................................0, 1, 2
12 V .............................................................................3
15 V .........................................................................4, 5
24 V .............................................................................6
Other voltages
1
.......................................................7, 8
Nominal voltage of output 2
V
o2 nom
None (single-output models) .......................................00
12 V, 12 V ...................................................................20
15 V, 15 V ....................................................................40
24 V, 24 V ....................................................................60
Other specifications or additional features
1
....... 21 – 99
Operational ambient temperature range
T
A
:
–25 to 71 °C ................................................................ -7
– 40 to 71 °C .................................................................-9
Other
1
............................................................... -0, -5, -6
Auxiliary functions and options:
Inrush current limitation ..............................................E
2
Output voltage control input ..................................... R
3
Potentiometer (output voltage adjustment) .............. P ³
Undervoltage monitor (D0 –
DD, to be specified)
....... D
4
ACFAIL signal (V2, V3, to be specified)
.................... V
⁴
Current share control.....................................................T
Cooling plate standard case ................................B or B1
Cooling plate for long case 220 mm
1
.......................B2
1
RoHS-compliant for all 6 substances .......................... G
Customer-specific models
Option E is mandatory for all -9 models, except AS and BS.
Feature R excludes option P and vice versa. Option P is not available for battery charger models.
Option D excludes option V and vice versa; option V is only available for models with 5.1 V single output.
1
2
3
4
Note:
The sequence of options must follow the order above. This part number description is descriptive only; it is not intended for creating
part numbers.
Example:
CS2540-9ERD3T B1G: DC-DC converter, operating input voltage range 28 – 140 VDC, 2 electrically isolated outputs,
each providing 15 V, 3.2 A, input current limiter E, control input R to adjust the output voltages, undervoltage monitor
D3, current share feature T, cooling plate B1, and RoHS-compliant for all six substances.
Product Marking
Basic type designation, applicable approval marks, CE mark, warnings, pin designation, patents and company logo, identification
of LEDs, test sockets, and potentiometer.
Specific type designation, input voltage range, nominal output voltages and currents, degree of protection, batch no., serial no.,
and data code including production site, modification status, and date of production.
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S Series
100 W DC-DC and AC-DC Converters
Functional Description
The input voltage is fed via an input fuse, an input filter, a bridge rectifier (LS models only), and an inrush current limiter to the
input capacitor
C
1
. This capacitor sources a single-transistor forward converter with a special clamping circuit and provides the
power during the hold-up time.
Each output is powered by a separate secondary winding of the main transformer. The resultant voltages are rectified and their
ripple smoothed by a power choke and an output filter. The control logic senses the main output voltage
V
o1
and generates, with
respect to the maximum admissible output currents, the control signal for the switching transistor of the forward converter.
The second output of double-output models is tracking to the main output, but has its own current limiting circuit. If the main output
voltage drops due to current limitation, the second output voltage will fall as well and vice versa.
03057b
N
4
26
Vi+
28
Opt. P
C
Y
4
2
16 R
18 i
20 D/V
Input filter
1
Control circuit
C
i
+
22 T
12 S+
4
6
8
10
Vo+
Bridge
rectifier
4
Forward converter
(approx. 120 kHz)
C
Y
Output
filter
Fuse
3
C
Y
Vo–
L
4
30
Vi– 32
24
C
Y
14 S–
1
2
3
4
Transient suppressor (VDR)
Suppressor diode (AS, BS, FS models)
For CS, DS, ES, LS: Either NTC (-7 models only) or option E
LS models only
–
+
Fig. 1
Block diagram of single-output converters
03058b
Opt. P
N
4
16 R
18 i
20 D
26
Vi+ 28
Input filter
1
C
Y
4
2
Forward converter
(approx. 120 kHz)
C
Y
Control circuit
C
i
+
22 T
Bridge
rectifier
4
Output 1
filter
12 Vo1+
14 Vo1–
4
6
8
10
Vo2+
Fuse
C
Y
3
C
Y
L
4
Vi–
30
32
24
Output 2
filter
C
Y
C
Y
Vo2–
1
2
3
4
Transient suppressor (VDR)
Suppressor diode (AS, BS, FS models)
For CS, DS, ES, LS: Either NTC (-7 models only) or option E
LS models only
–
+
Fig. 2
Block diagram of double-output models
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