SL20 with 48...56VCB
schemeSL20.113

IEC60950

Data sheet

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

Input: AC 115/230V auto selectOutput: 48...56V / 480W
93% Efficiency
Ideal for parallel operation

UL60950 E137006
CUL/CSA-C22.2
No 60950

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

EMC andLow Volt.
Directive

Datasheet
Input
Input voltage
Rated tolerances• Continuous• Short-term (30s)
at 48V/10A
Input current InOutput
AC 100-120V/220-240V,
47-63Hz, auto selectOutput voltage

DC 48...56V, adjustable by (covered) front panel potentiometer; preset: 48V ±0.5%
Adjustment range guaranteed

AC 85...132V or AC 184...264V
AC 85...140V or AC 175...280V

Output noise
suppression

Radiated EMI values below EN50081-1, evenwhen using long, unscreened output cables.

Ambient temperature
range Tamb

Operation: 0°C...+70°C (> 60°C: Derating)Storage: -25°C...+85°C<12A (115V range)<6A (230V range)

Inrush current limiting with active bypass of the limiting resistor (NTC).
Inrush current Ipk<18A @ AC 264V (Tamb = +25°C, cold start)<37A @ 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 the usual thermomagnetic overload sensing principle (used anyway to fuse theinput lines).
Transient handlingTransient resistance acc. to VDE 0160 / W2
(750V / 1.3ms), for all load conditions.

Hold-up time

30ms at 48V/10A, AC 230Vin
35ms at 48V/10A, AC 120Vin
15ms at 48V/10A, AC 100Vin

Efficiency, Reliability etc.*(AC 230V, 48V/10A)

Rated continuous loading with convection cooling:• Tamb=0°C - 60°C
48V/10A resp. 56V/8.6A
short-term (<30s)
48V/12.5A resp. 56V/10.7A
Derating

12W/K

Voltage regulation

better 2% over allRipple• Output charact. S• Output charact. P

incl. spikes (20MHz bandw.), 50! measurem.
<40mVPP (<0.09%)<80mVPP (In: AC 230V, Out: 48V/10A)<100mVPP (In: AC 184V, Out: 56V/8.6A)(S/P: Single/Parallel Mode)

Over-voltage protection(at Tamb = 60-70°C)

At 58.6V ± 2.3%: switch to hiccup mode

Front panel indicators:• Green LED on, when Vout = Vout adjusted• Red LED on, when Vout < Vout adjusted
Parallel operation

Yes, up to ten SL20

To achieve current sharing the output V/I characteristic can be altered tobe 'softer' (47.9V at 0A, 45.6V at 10A). This is done by repositioning an
external bridge connection (without opening the unit).

Efficiency

typ. 93%

Lossestyp. 36.2W

MTBF

519.000h acc. to Siemensnorm SN29500(48V/10A, 230V, Tamb = 40°C)

Construction/ Mechanics*

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.

Housing dimensions and Weight
220mm x 124mm x 102mm (+ DIN rail)• WxHxD
above/below 70mm recommended• Free space forleft/right 25mm recommended
ventilation
1.8kg• Weight(AC 230V, 48V/10A)* For further information see data sheets„The SilverLine“,„SilverLine Family Branches“ and mechanics data sheet SL20

Order information

sl20e113 / 040114

Power Back Immunity

max. 57V

Design advantages:• All connection blocks are easy to reach as mounted on thefront 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.

Order numberDescription

SL20.113
SLZ02(wall mounting set; contains 2 pcs.)
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Data sheet
Start / Overload Behaviour

Output characteristic (typ.)Start-up delay

typ. 0.55s

Rise time

appr. 20-80ms, depending on load
Outupt voltage Vout [V]Overload behaviour Puls Overload Design (see right-hand diagram)
Advantages:• 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 10A.
• Advantage: Due to the high and continuously supplied overload
current the unit starts reliably even with awkward loads (DC-DCconverters, motors). No 'sticking' can occur as, for example, withfold-back characteristics, and secondary fuses trigger more reliably.

60
56
5248
44403632282420161284048V Single
56V Single
48V Parallel
56V Parallel0

Further information
Further information, especially about• EMC• Connections• Safety, Approvals• Mechanics and Mounting,see page 2 of the „The SilverLine“ data sheet

51015
Output current Iout [A]20

Efficiency (typ., at Vout =48V)
94
93

Efficiency [%]For detailed dimensions
see SilverLine mechanics data sheet SL2092
91

100VAC120VAC230VAC

90
89
88
246810Output current Iout [A]1214

Hold-up time (min., at Vout =48V)
60% Load
100% Load
125% Load

5040

Hold-up time [ms]Hold-up time [ms]60302010at AC 230V

0180

190

200
210
220
Input voltage VACin [V]

230

240

90
80
70
60
50
4030
20
10060% Load
100% Load
125% Loadat AC 115V
85

90

95

100105110

115

120125130

Input voltage VACin [V]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.

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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sl20e113 / 040114

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)
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
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

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Data sheet

Side view SL20

Bottom view
SL20

only SL20.110/.111

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

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sledrw20 / 040114