sl20e100 / 050923 1/2
Data sheet
Single-Phase Power
SL20.100
• Input: AC 230V
• Output: 24-28V / 480W (600W)
• 91% efficiency
• Ideal for parallel operation
• Simple fusing
Input
Efficiency, Reliability etc.*
* For further information see data sheets „The SilverLine“,
„SilverLine Family Branches“ and mechanics data sheet
Input voltage AC 230V, +15%, – 20%
47...63Hz
(SL20.300/.301: 3 AC 400/480V,
see separate data sheet)
Rated Tolerances
• Continuous
operation
• Short term (1 min)
at 24 V/20 A
AC 184...264V resp.
DC 270...370V
AC 170...280V resp.
DC 250...400V
Input current 5A
Inrush current typ. 33A at AC 264V
Inrush current limiting done with a fixed 15R 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 <10A
2
s
Unit is internally fused (fuse not accessible). For external fusing of unit
and for input line protection, use circuit breaker with B-characteristic
10A or slower action, or alternatively T10A HBC fuse.
Harmonic current
emissions (PFC)
SL20.100 on request
SL20.101 acc. to EN61000-3-2
Transient
handling
Active transient filter incorporated, so tran-
sient resistance acc.to VDE 0160 / W2 (750V/
1.3ms), for all load conditions.
Hold up time >20ms
at AC 230V, 24V/20A
Efficiency typ. 91% (AC 230V, 24V/20A)
Losses typ. 48W (AC 230V, 24V/20A)
MTBF 310.000h acc. to Siemensnorm SN 29500
(24V/20A, AC 230V, T
amb
= +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.
Output
Construction / Mechanics *
Output voltage DC 24-28V adjustable by (covered) front panel
potentiometer, preset: 24.0V ±0.5%
Adjustment range guaranteed
Output noise
suppression
Radiated EMI values below EN61000-6-3, even
when using long, unscreened output cables.
Ambient temperature
range T
amb
Operation: 0°C...+70°C (>60°C: Derating)
Storage: -25°C...+85°C
Rated continuous loading with convection cooling
•T
amb
=0°C - 60°C
•T
amb
=0°C - 45°C
24V/20A (480W) resp. 28V/18A (504W)
24V/25A (600W) resp. 28V/22A (616W)
short-term also at 60°C
Derating typ. 12W/K (at T
amb
= +60°C...+70°C)
Voltage regulation better than 2% over all
Ripple
• Output charact. S
• Output charact. P
(S/P: Single/Parallel Mode)
(incl. spikes (20MHz bandw.), 50Ω measurem.)
<20mV
PP
(<0.1%)
<40mV
PP
(In: AC 230V, Out: 24V/20A)
<100mV
PP
(In: AC 184V, Out: 24V/20A)
Over-voltage
protection
At 33V ±10%: switch to hiccup mode
Front panel indicators: • Green LED on, when V
out
> U
T
, where U
T
is ca. 2 V below Vout adjusted (24V...28V)
• Red LED on, when 14V < V
out
< U
T
• Red LED flashes, when 0V < V
out
< 14V
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).
Power Back Immunity >30V
Housing dimensions and Weight
• W x H x D
• Free space for
ventilation
•Weight
220mm x 124mm x 102mm (+ DIN rail)
above/below 70mm recommended
left/right 25mm recommended
SL20.100: 1800g SL20.101: 2400g
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 connec-
tion blocks are mounted in the cooler area on the underside of the
unit.
Order information
Order number Description
SL20.100 (Basic version*),
SLS20.100 (Safety Cover*),
SLZ01
including PFC: SL20.101
including PFC: SLS20.101
Screw mounting set,two needed per unit
CUL/CSA-C22.2
EMC and
Low Volt.
UL60950 E137006
UL508 LISTED
IND. CONT. EQ.
No 60950
18 WM, 60°C
Directive
CB
scheme
IEC60950
