SL20 with 48...56V
SL20.113
CB
scheme
IEC60950
UL508 LISTED
IND. CONT. EQ.
18 WM, 60°C
• Input: AC 115/230V auto select
• Output: 48...56V / 480W
• 93% Efficiency
• Ideal for parallel operation
Data sheet
Datasheet
Input
Input voltage AC 100-120V/220-240V,
47-63Hz, auto select
Rated tolerances
• Continuous
• Short-term (30s)
at 48V/10A
Input current I
Inrush current limiting with active bypass of the limiting resistor (NTC).
Inrush current I
Fuse loading I²t <5A
To be fused with a 16A, B-type 'circuit-breaker' switch based on the usual thermomagnetic overload sensing principle (used anyway to fuse the
input lines).
Transient handling Transient resistance acc. to VDE 0160 / W2
Hold-up time 30ms at 48V/10A, AC 230V
n
pk
AC 85...132V or AC 184...264V
AC 85...140V or AC 175...280V
<12A (115V range)
<6A (230V range)
<18A @ AC 264V (T
<37A @ AC 264V (T
2
s (T
= +25°C, cold start)
amb
2
<8A
s (T
= +50°C, cold start)
amb
(750V / 1.3ms), for all load conditions.
35ms at 48V/10A, AC 120V
15ms at 48V/10A, AC 100V
= +25°C, cold start)
amb
= +50°C, cold start)
amb
in
in
in
Efficiency, Reliability etc.*
Efficiency typ. 93% (AC 230V, 48V/10A)
Losses typ. 36.2W (AC 230V, 48V/10A)
MTBF 519.000h acc. to Siemensnorm SN29500
(48V/10A, 230V, T
Life cycle (electrolytics) The unit exclusively uses longlife electrolytics,
specified for +105°C (cf. ’The SilverLine’, p.2).
High reliability, as
• only five aluminium electrolytics and
• no small aluminium electrolytics are used.
* For further information see data sheets„The SilverLine“,
„SilverLine Family Branches“ and mechanics data sheet SL20
Order information
amb
= 40°C)
UL60950 E137006
CUL/CSA-C22.2
No 60950
Type approval
acc. to:
• IEC / EN60950
• EN50178
Overvolt. cat. III
• EN60204
EMC and
Low Volt.
Directive
Output
Output voltage DC 48...56V, adjustable by (covered) front pan-
el potentiometer; preset: 48V ±0.5%
Adjustment range guaranteed
Output noise
suppression
Ambient temperature
range T
amb
Rated continuous loading with convection cooling:
•T
=0°C - 60°C
amb
short-term (<30s)
Derating 12W/K (at T
Voltage regulation better 2% over all
Ripple
• Output charact. S
• Output charact. P
(S/P: Single/Parallel Mode)
Over-voltage protection At 58.6V ± 2.3%: switch to hiccup mode
Front panel indicators:
• Green LED on, when V
• Red LED on, when V
Parallel operation Yes, up to ten SL20
To achieve current sharing the output V/I characteristic can be altered to
be 'softer' (47.9V at 0A, 45.6V at 10A). This is done by repositioning an
external bridge connection (without opening the unit).
Power Back Immunity max. 57V
Radiated EMI values below EN50081-1, even
when using long, unscreened output cables.
Operation: 0°C...+70°C (> 60°C: Derating)
Storage: -25°C...+85°C
48V/10A resp. 56V/8.6A
48V/12.5A resp. 56V/10.7A
= 60-70°C)
amb
incl. spikes (20MHz bandw.), 50Ω measurem.
<40mV
<80mV
<100mV
out
(<0.09%)
PP
(In: AC 230V, Out: 48V/10A)
PP
(In: AC 184V, Out: 56V/8.6A)
PP
= V
out
out
adjusted
adjusted
out
< V
Construction/ Mechanics*
Housing dimensions and Weight
•W x H x D
• Free space for
ventilation
•Weight
Design advantages:
• All connection blocks are easy to reach as mounted on the
front panel.
• PVC insulated cable can be used for all connections, as the connection
blocks are mounted in the cooler area on the underside of the unit.
220mm x 124mm x 102mm (+ DIN rail)
above/below 70mm recommended
left/right 25mm recommended
1.8kg
Order number Description
SL20.113
SLZ02
sl20e113 / 040114 1/2
(wall mounting set; contains 2 pcs.)
Data sheet
Start / Overload Behaviour
Start-up delay typ. 0.55s
Rise time appr. 20-80ms, depending on load
Overload behaviour Puls Overload Design (see right-hand diagram)
Advantages:
• No disconnection/hiccup, thus overloading is possible also for a
longer period of time (load start-up), ideal for parallel operation.
• High overload/short-circuit current due to straight characteristic;
each bias point of the V/I characteristic extends 10A.
• Advantage: Due to the high and continuously supplied overload
current the unit starts reliably even with awkward loads (DC-DC
converters, motors). No 'sticking' can occur as, for example, with
fold-back characteristics, and secondary fuses trigger more reliably.
Further information
Further information, especially about
•EMC
• Connections
• Safety, Approvals
• Mechanics and Mounting,
see page 2 of the „The SilverLine“ data sheet
For detailed dimensions
see SilverLine mechanics data sheet SL20
Output characteristic (typ.)
60
56
52
48
44
40
36
32
28
24
20
16
Outupt voltage Vout [V]
12
8
4
0
0 5 10 15 20
Efficiency (typ., at V
94
93
92
91
Efficiency [%]
90
89
48V Single
56V Single
48V Parallel
56V Parallel
Output current Iout [ A]
=48V)
out
100VAC
120VAC
230VAC
88
2468101214
Hold-up time (min., at V
60
50
40
30
20
10
Hold-up time [ms]
0
180 190 200 210 220 230 240
Unless otherwise stated, specifications are valid for AC 230V input voltage, +25°C ambient temperature, and 5 min. run-in time. They are subject to change without prior notice.
60% Load
100% Load
125% Load
=48V)
out
Input voltage VACin [V]
at AC 230V
90
80
70
60
50
40
30
20
Hold-up time [ms]
10
0
85 90 95 100 105 110 115 120 125 130
60% Load
100% Load
125% Load
Input voltage VACin [V]
Your partner in power supply:
Output current Iout [A]
at AC 115V
European
Power Supply
Manufacturers
Association
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PULS GmbH
Arabellastraße 15
D-81925 München
Tel.: +49 89 9278-0
Fax: +49 89 9278-199
www.puls-power.com
2/2 sl20e113 / 040114