Single-Phase PowerCBscheme

SL20.100

IEC60950

Data sheet

UL508 LISTED
IND. CONT. EQ.
18 WM, 60°C•••••

Input: AC 230V
Output: 24-28V / 480W (600W)
91% efficiency
Ideal for parallel operation
Simple fusing

Input
Input voltage

EMC andLow Volt.
DirectiveOutput
AC 230V, +15%, – 20%
47...63Hz(SL20.300/.301: 3 AC 400/480V,see separate data sheet)

Rated Tolerances• Continuousoperation• 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. Thatmeans no reset time even at a warm-start.
Fuse loading

UL60950 E137006
CUL/CSA-C22.2
No 60950<10A2sUnit 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.

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, evenwhen using long, unscreened output cables.

Ambient temperature
range Tamb

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

24V/20A (480W) resp. 28V/18A (504W)
24V/25A (600W) resp. 28V/22A (616W)
short-term also at 60°C

Derating

typ. 12W/K

Voltage regulation

better than 2% over allRipple• Output charact. S• Output charact. P(incl. spikes (20MHz bandw.), 50Ω measurem.)<20mVPP (<0.1%)<40mVPP (In: AC 230V, Out: 24V/20A)<100mVPP (In: AC 184V, Out: 24V/20A)(S/P: Single/Parallel Mode)(at Tamb= +60°C...+70°C)

Harmonic current
emissions (PFC)

SL20.100 on request
SL20.101 acc. to EN61000-3-2Over-voltage
protection

Transienthandling

Active transient filter incorporated, so transient resistance acc.to VDE 0160 / W2 (750V/1.3ms), for all load conditions.

Hold up time>20ms
at AC 230V, 24V/20A

Front panel indicators: • Green LED on, when Vout > UT, where UTis ca. 2 V below Vout adjusted (24V...28V)• Red LED on, when 14V < Vout< UT• Red LED flashes, when 0V < Vout < 14V
Parallel operation

At 33V ±10%: switch to hiccup mode

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 abridge connection (without opening the unit).

Efficiency, Reliability etc.*
Efficiency

typ. 91%(AC 230V, 24V/20A)

Lossestyp. 48W(AC 230V, 24V/20A)

MTBF

310.000h acc. to Siemensnorm SN 29500(24V/20A, AC 230V, 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

Power Back Immunity>30V

Construction / Mechanics *Housing dimensions and Weight• WxHxD• Free space forventilation• 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 frontpanel.
• PVC insulated cable can be used for all connections, as the connection blocks are mounted in the cooler area on the underside of theunit.

Order information

sl20e100 / 050923

Order numberDescription

SL20.100 (Basic version*),
SLS20.100 (Safety Cover*),
SLZ01

including PFC: SL20.101
including PFC: SLS20.101
Screw mounting set,two needed per unit
1/2

Data sheet
Start / Overload Behaviour
Startup delay

typ. 0.5s

Rise timeca. 20-80ms, depending on load

Electronic current limiting, protects against overload and short circuit:• Vout < ca. 14V: Periodical switch-on attempts (hiccup-mode).
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 inan immediate shut-down.
• Parallel operation of several units possible.
Proper switch-on performance is obtained.

Duration of switch-on attempts at• Initial applicationon mains• Subsequent attempts

ca. 1.4s

Hiccup operation at

Vout < ca. 14V

Duration between switch-on attempts

ca. 4sca. 0.5s

Functional diagrams

Output characteristic (typ.)

Efficiency (typ., at Vout =24V)

32

95
94
9392
Efficiency [%]Output voltage Vout [V]2416
Vout < ca. 14V: Hiccup mode
8101520184V AC230V AC
264 V AC

89888685059087

24V / Single
24V / Parallel
28V /Single
28V / Parallel
091

2530

3584

40

5Output current Iout [A]1015
Output current Iout [A]2025205
225
245
Input voltage VACin [V]265

Hold-up time (min., at Vout=24V)
100

Further information
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

Hold-up time [ms]80

40% Load
60% Load
80% Load
100% Load
125% Load6040200185

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.

All data is valid for SL20.100. Regarding the SL20.101 (including PFC) some values may differ.

Your partner in power supply:

EuropeanPower Supply
Manufacturers
AssociationBayerns Best 50
Czech 100 Best
Europe’s 500

PULS GmbH
Arabellastraße 15D-81925 München
Tel.: +49 89 9278-0
Fax: +49 89 9278-199
www.puls-power.com

2/2

sl20e100 / 050923

Mechanics

Data sheet

SL20• Innovative DIN-Rail mount, unit
holds even at vibration or lateralpressure• 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)• Weight2.5 kg (SL20.111, SL20.115)

Connections• Input/Output• Current handling
capacity• GridRobust metal housing withfine 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 numberDescription

SL20.100 / .101
SL20.110 / .111
SL20.115
SL20.300 / .301
SLZ01AC 230 V, no PFC / incl. PFC
Auto select, no PFC / incl. PFCAuto select, remote switch-off
3 AC 400 V / 3 AC 480 V
Screw mounting set, two needed per unit

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Data sheet

Side view SL20

Bottom view
SL20

only SL20.110/.111

C

Input terminals
SL20.30x bottom view

SH

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 datasheet 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 noticeYour partner in power supply:

EuropeanPower Supply
Manufacturers
AssociationBayerns 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