All-rounder
SL20.300
SL20.301
EMC and
Low Volt.
Directive
Data sheet
UL60950 E137006
CUL/CSA-C22.2
No. 60950
•
•
•
•
•
Input: 3 AC 400V / 3 AC 480V
Output: 24...28V / 480W (600W)
92% efficiency
Ideal for parallel operation
Simple fusing
CB
scheme
IEC60950
Input
Input voltage
UL508 LISTED
IND. CONT. EQ.
18 WM, 60°C
Output
SL20.300: 3 AC 400 V, – 15 %, + 20 %
SL20.301: 3 AC 480 V, – 15 %, + 20 %
(SL20.100: AC 230 V, s. separate data sheet)
47-63 Hz, Suitable for IT power systems
Output voltage
Rated Tolerances
• Continuous
operation
• Short term (1 min)
at 24 V/20 A
SL20.300: 340-479 V ACresp. 450-700 V DC
SL20.301: 408-576 V AC resp. 550-820 V DC
SL20.300: 300-550 V AC resp. 370-790 V DC
SL20.301: 360-620 V AC resp. 450-890 V DC
Ambient temperature
range Tamb
Input current
3 x 1.5 A
Inrush current
< 15 A at 440 V AC, < 17 A at 480 V AC
Inrush current limiting done with a fixed 47R resistor (not a thermistor)
which is bridged after the unit is running, so losses are minimised. That
means no reset time even at a warm-start.
Fuse loading
< 2 A2s
To be fused with a 3 x 10A, B-type 'circuit-breaker' switch based on the
usual thermomagnetic overload sensing principle (used anyway to fuse
the input lines; unit has no internal fuses).
Harmonic current
emissions (PFC)
acc. EN 61000-3-2
Transient
handling
Active transient filter incorporated, so transient resistance acc.to VDE 0160 / W2 (1300 V /
1.3 ms), for all load conditions.
Hold up time
> 11 ms
at 24 V/20 A, Vinnom
24...28 V DC, adjustable by (covered) front
panel potentiometer; preset: 24 V ±0.5%
Adjusting range guaranteed
Output noise suppression Radiated EMI values below EN50081-1, even
Silent Switcher ™
when using long, unscreened output cables.
Operation: 0°C...+70°C (>60°C: Derating)
Storage: -25°C...+85°C
Rated continuous loading with convection cooling
• Tamb=0°C - 60°C
• Tamb=0°C - 45°C
24 V / 20 A (480 W) resp. 28 V / 18 A (504 W)
24 V / 25 A (600 W) resp. 28 V / 22 A (616 W)
short-term also at 60 °C
Derating
typ. 12 W/K
Voltage regulation
better than 2% over all
Ripple
< 20 mVPP (i.e. < 0.1 %) incl. spikes
20 MHz bandwidth, 50 !"measurement
(at Tamb=+60°C...+70°C)
Over-voltage protection At 32 V ± 10%: switch to hiccup mode
Front panel indicators:
• Green LED on, when Vout > UT, where UT is
ca. 2 V below Vout adjusted (24V...28V)
• Red LED on, when 14 V < Vout< UT
• Red LED flashes, when 0 V < Vout < 14 V
Parallel operation
Yes, up to ten SL20 units
To achieve current sharing the output V/I characteristic can be altered to
be 'softer' (25V at 0.4A, 24V at 20A). This is done by repositioning a
bridge connection (without opening the unit).
Reverse power immunity > 30 V
Efficiency, Reliability etc.*
Efficiency
typ. 92 %
(24 V/20 A, Vinnom)
Losses
typ. 42 W
(24 V/20 A, Vinnom)
MTBF
310.000 h acc. to Siemensnorm SN 29500
(24 V/20 A, Vinnom, Tamb = +40 °C)
Life cycle (electrolytics)
The unit exclusively uses longlife electrolytics,
specified for +105°C (cf. ’The SilverLine’, p.2).
High reliability, as
• only four aluminium electrolytics and
• no small aluminium electrolytics are used.
*
For further information see data sheets „The SilverLine“, „SilverLine Family
Branches“ and mechanics data sheet
Order information
Order number
Description
SL20.300
SL20.301
SLZ02
400 V input
480 V input
Screw mounting set, two needed per unit
sl20e300 / 031001
1/2
Data sheet
Output V/I characteristic (typ.)
Construction / Mechanics *
32
• WxHxD
• Free space for
ventilation
• Weight
220 mm x 124 mm x 102 mm (+ DIN rail)
above/below 70 mm recommended
left/right 25 mm recommended
1.8 kg
Design advantages:
• All connection blocks are easy to reach as mounted at 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.
Output voltage Vout [V]
Housing dimensions and Weight
typ. 0.2 s
Rise time
ca. 20-80 ms, depending on load
Duration of switch-on attempts at
16
Vout < ca. 14V: Hiccup mode
28V / Parallel
28V / Single
24V / Parallel
24V / Single
8
0
Start / Overload Behaviour
Startup delay
24
0
5
10
15
20
25
30
35
Output current Iout [A]
Efficiency (typ., at Vout =24V)
• Initial application
on mains
• Subsequent
attempts
ca. 1.4 s
Hiccup operation at
Vout < ca. 14 V
92
Duration between
switch-on attempts
ca. 4 s
91
95
ca. 0.5 s
94
Electronic current limiting, protects against overload and short circuit:
• Vout < ca. 14 V: Periodical switch-on attempts (hiccup-mode).
• Vout > ca. 14 V: The output current is continuous.
The V/I characteristic of the supply is straight.
Advantages of the switch-on/overload behaviour:
• Safer switch-on into highly non-linear loads with large
starting currents
• Short-term overloads result in current limiting and not in
an immediate shut-down.
• Parallel operation of several units possible.
Proper switch-on performance is obtained.
Efficiency [%]
93
90
89
340 V AC
400 V AC
88
87
480 V AC
86
85
84
4
8
12
16
20
25
Output current Iout [A]
Hold-up time ((typ., at Vout =24V)
60
40% Load
60% Load
80% Load
100% Load
125% Load
Further Information
All data is valid for SL20.300.
For SL20.301 (with 480 V input) some values may differ.
40
Hold-up time [ms]
For further information, especially about
• EMC
• Connections
• Safety, Approvals
• Mechanics und Mounting,
see page 2 of the „The SilverLine“ data sheet.
For detailed dimensions
see SilverLine mechanics data sheet SL20
20
0
340
360
380
400
420
440
460
480
Input voltage VACin [V]
Specifications valid for 3 x AC 400V input voltage, +25°C ambient temperature, and 5 min run-in time, unless otherwise stated. They are subject to change without prior notice.
Your partner in power supply:
European
Power Supply
Manufacturers
Association
Bayerns Best 50
Czech 100 Best
Europe’s 500
PULS GmbH
Arabellastraße 15
D-81925 München
Tel.: +49 89 9278-0
Fax: +49 89 9278-199
www.puls-power.com
2/2
sl20e300 / 031001
Mechanics
Data sheet
SL20
• Innovative DIN-Rail mount, unit
holds even at vibration or lateral
pressure
• Clearly arranged and user oriented
• Large, robust screw terminals
• Sealed metal housing
• Fine ventilating grid
Input terminals
SL20.1xx
Front view SL20.300
Output terminals
SL20.115
Construction / Mechanics
Connections
Housing dimensions and Weight
220 mm x 124 mm x 102 mm (+ DIN rail)
• WxHxD
• Free space for above/below 70 mm recommended
left/right 25 mm recommended
ventilation
1.5 kg (SL20.100) / 1.8 kg (SL20.110, SL20.300)
• Weight
2.5 kg (SL20.111, SL20.115)
Connections
• Input/Output
• Current handling
capacity
• Grid
Robust metal housing with
fine ventilat. grid ( 3,5 mm, IP20), to keep out small parts (e.g. screws)
Mounting
on DIN-Rail (TS35/7.5 or TS35/15, 1...1.5 mm thick)
therefore
• Simple snap-on system
• Sits safely and firmly on the DIN-Rail
• No tools required to remove
or backplane-mounted
(two optional screw mounting sets SLZ01 required)
sledrw20 / 040114
Screw terminals, connector size range:
solid 0.5- 6 mm2 / flexible 0.5 - 4 mm2
30 A per output
Two connectors per output, 9 mm (SL20.115:
6 mm) distance between adjacent connectors
Design advantages:
• All connection blocks are easy to reach as mounted at the front panel.
Input/output strictly apart from each other, thus no mixing up
• PVC insulated cable can be used for all connections, no thermal protection is needed
Order information
Order number
Description
SL20.100 / .101
SL20.110 / .111
SL20.115
SL20.300 / .301
SLZ01
AC 230 V, no PFC / incl. PFC
Auto select, no PFC / incl. PFC
Auto select, remote switch-off
3 AC 400 V / 3 AC 480 V
Screw mounting set, two needed per unit
1/2
Data sheet
Side view SL20
Bottom view
SL20
only SL20.110/.111
C
Input terminals
SL20.30x bottom view
S
H
P
Input terminals
SL20.1xx bottom view
Output terminals
SL20.115 bottom view
This ’mechanics data sheet’ exclusively deals with the mechanical properties of the product. For further information (especially concerning electrical properties), please refer to the generic data
sheet of the SL20 and to the basic data sheet „The SilverLine“ dealing with common features of all SilverLine units. This data sheet is subject to change without prior notice
Your partner in power supply:
European
Power Supply
Manufacturers
Association
Bayerns Best 50
Czech 100 Best
EuropeÕs 500
PULS GmbH
Arabellastraße 15
D-81925 München
Tel.: +49 89 9278-0
Fax: +49 89 9278-199
www.puls-power.com
2/2
sledrw20 / 040114