20A single phase

CBscheme

SL20.110/.111

IEC60950

Data sheet

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

Input: AC 115/230V Auto SelectOutput: 24...28V / 480W (600W)
90% Efficiency
Ideal for parallel operation
Overload behaviour adjustable!
(Continuous current / Hiccup)

UL60950 E137006
CUL/CSA-C22.2
No 60950

Type approvalacc. to:• IEC / EN60950• EN50178
Overvolt. cat. III• EN60204

EMC andLow Volt.
Directive

Input

OutputInput voltage
Rated tolerances• Continuousoperation• Short-term (1 min)at 24V/20A
Input current In

AC 100-120V/200-240V, 47-63Hz
Auto SelectOutput voltage

DC 24...28V, adjustable by (covered) front
panel potentiometer. Adjust. range guaranteed

AC 85-132V resp. AC 184-264V

Output noisesuppression

EN 61000-6-3 (class B) is fulfilled even whenusing long, unscreened output cabels

Ambient temperature
range Tamb

Operation: 0°C...+70°C (>60°C: Derating)Storage: -25°C...+85°C

AC 85-140V resp. AC 170-280V<10A (115V range)<5A (230V range)

Rated continuous loading with convection cooling:

Inrush current limiting with active bypass of the limiting resistor (NTC).
Inrush current Ipk<18A at AC 264V (Tamb = +25°C, cold start)<37A at AC 264V (Tamb = +50°C, cold start)

Fuse loading I²t<5A2s (Tamb = +25°C, cold start)<8A2s (Tamb = +50°C, cold start)

To be fused with a 16A, B-type 'circuit-breaker' switch based on theusual thermomagnetic overload sensing principle (used anyway to fuse
the input lines).

• Tamb=0°C - 60°C

24V/20A resp. 28V/18A
short-term (<30s) 24V/25A resp. 28V/22ADerating

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)

Over-voltage protection

Harmonic currentemissions (PFC)

SL20.110: noSL20.111: acc. to EN 61000-3-2

Transienthandling

Transient resistance acc. to VDE 0160 / W2
(750V / 1.3ms), for all load conditions.

Hold-up time

30ms at 24V/20A, AC 230Vin
30ms at 24V/20A, AC 120Vin
15ms at 24V/20A, AC 100Vin(at Tamb = 60-70°C)

At 31V ± 3%: switch to hiccup mode

Front panel indicators:• Green LED on, when Vout > UT, where UT is appr. 2V below Voutadjusted (24V...28V)• Red LED on, when Vout < UTParallel operation

Yes, up to ten SL20

Efficiency

typ. 90%(AC 230V, 24V/20A)

To achieve current sharing:• Plug jumper into pos. 'Output parallel use'. This alters the output
V/I characteristic to be 'softer' (25V at 0.4A, 24V at 20A). The output voltage can still be adjusted.
• Missing jumper = 'parallel use', i.e. 'soft' characteristic

Lossestyp. 53W(AC 230V, 24V/20A)

Power back immunity

MTBF

519.000h acc. to Siemensnorm SN29500(24V/20A, 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 five aluminium electrolytics and• no small aluminium electrolytics are used.

Efficiency, Reliability etc.** For further information see data sheets „The SilverLine“,„SilverLine Family Branches“ and mechanics data sheet

Order information
Order number

sl10e110 / 050318

SL20.110 (without PFC)
SL20.111 (including PFC)

Description

max. 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
1.8kg (SL20.110) resp.
2.5kg (SL20.111)

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.
SLZ02 (wall mounting set; contains 2 pcs.)

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Data sheet

typ. 0.55s

Rise time

appr. 20-80ms, depending on load

Overload behaviour • Power Boost: Short-term (<30s) 125% output
power without voltage drop.
(see characteristic• Electronic current limiting, protects fromon the right)
overload and short-circuit.
• High overload/short-circuit behaviour(Vout <14V) switchable between PULS Overload Design and hiccup mode. Switching byjumper on bottom of the unit; it is not necessary to open the unit for this purpose.
PULS Overload Design™ (continuous current):• No disconnection/hiccup, thus overloading is possible also for alonger 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 20A.
Advantage: Due to the high and continuously supplied overload current
the unit starts reliably even with awkward loads (DC-DC converters, motors). No ’sticking’ such as can occur with fold-back characteristics, andsecondary fuses trigger more reliably.
Hiccup mode:• Unit switches off when high overload occurs (Vout < appr. 14V)
with subsequent periodical switch-on attempts (hiccup mode):– Duration of switch-on attempts:
appr. 0.1s at short-chircuit or appr. 1s at overload– Duration between switch-on attempts: appr. 1.5s
• Vout > appr. 14V: The output current is continuous. The V/I characteristic equals that of the PULS Overload Design™; each bias pointof the V/I characteristic extends 20A.

3228
Output voltage Vout [VStartup delay

Output characteristic (typ.)

2016Vout < appr. 14V: Hiccup mode

1228V / Parallel
24V / Parallel
24V / Single
28V / Single

800

51015
20
Output current Iout [A]2530

Efficiency (typ., at Vout =24V)
92

SL20.110

91

90

89

100 V AC
120 V AC
230 V AC88

Further information

87
510

15

2025

Output current Iout [A]Hold-up time (min., at Vout =24V)
80
Hold-up time [ms]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 SL20244Efficiency [%]Start / Overload Behaviour

60% Load
100% Load
125% Load

604020at 230V AC

0180

190

200210220
Input voltage VACin [V]

230

240

Hold-up time [ms]8060% Load
100% Load
125% Load

604020at 115V AC

080

90100110
Input voltage VACin [V]

120

130

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 the SL20.110. Regarding the SL20.111 (including PFC) some values may differ (please contact us if necessary).

Your partner in power supply:

EuropeanPower Supply
Manufacturers
AssociationBayerns 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

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sl10e110 / 050318

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)• Weight
2.5 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)
Mountingon 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
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 unit1/2

Data sheet

Side view SL20

Bottom view
SL20

only SL20.110/.111

C

Input terminals
SL20.30x bottom view

SHP

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 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

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sledrw20 / 040114