SL20 with remote shut-down

CBscheme

SL20.115

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
Remote shut-down

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• Continuousoperation• Short-term (1 min)at 24V/20A
Input current InOutput (signal terminals see overleaf)
AC 100-120V/220-240V,47-63Hz, auto selectAC 85...132V resp. AC 184...264V
AC 85...140V resp. AC 170...280V<10A (115V range); <5A (230V range)

Inrush current limiting with active bypass of the limiting resistor (NTC).
Inrush current Ipk
Fuse loading I²t<18A @ AC 264V (Tamb = +25°C, cold start)<37A @ AC 264V (Tamb = +50°C, cold start)<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).
EN 61000-3-2 (harmonic current emissions [PFC]) is fulfilled
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

Efficiency, Reliability
Efficiency

typ. 90.5%(AC 230V, 24V/20A)

Lossestyp. 50W(AC 230V, 24V/20A)

MTBF519.000h 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.

Further information
Further information, especially about• EMC, Connections, Safety, Approvals, Mechanics and Mounting
see page 2 of the „The SilverLine“ data sheet.
• For detailed dimensions see SilverLine mechanics data sheet SL20.

s20e115 / 040114

Output voltage

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

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

Rated continuous loading with convection cooling:• Tamb=0°C - 60°C
24V/20A resp. 28V/18A
short-term (<30s) 24V/25A resp. 28V/22A
Derating

12W/K

Voltage regulation

better than 2% over allRipple• Output charact. S• Output charact. P(incl. spikes (20MHz bandw.), 50! 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(at Tamb = 60-70°C)

At 33V ± 10%: 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

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 an
external bridge connection (without opening the unit).
Power Back Immunity

max. 30V

Construction / Mechanics
Housing dimensions and Weight
220mm x 124mm x 102mm (+ DIN rail)• WxHxD
above/below 70mm recommended• Free space forleft/right 25mm recommended
ventilation
2,5kg• Weight
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 information
Order numberDescription

SL20.115
SLZ02(wall mounting set; contains 2 pcs.)
1/2

Data sheet
Start / Overload Behaviour

Output characteristic (typ.)typ. 0.55s

32Rise time

appr. 20-80ms, depending on load

28

Overload behaviour

Puls Overload Design (see right-hand diagram)

24

Advantages:• No disconnection/hiccup, thus overloading is possible also for a longer period oftime (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' can occur
as, for example, with fold-back characteristics, and secondary fuses trigger more reliably.

Output voltage Vout [V]Startup delay

20
1628V / Parallel
24V / Parallel
24V / Single
28V / Single

12840051015
20
Output current Iout [A]Signal terminals

Parallel operation / cascading of outputs:• Use a multi-pole switch with one switch contact for each power supply unit (1 x On);
connection of the signal terminals with one switch contact is not permissible whenbeing used in parallel operation
Additional control features with parallel operation:
Unit turns on:• positive voltage (4...30V) is applied to 'Remote Shutdown 1' against negative output
voltage
Unit switches off:
• 0...0.5Vin is applied to 'Remote Shutdown 1'
Note:• Connection of the terminals 'Remote Shutdown 1' is possible with parallel operation; do not use the terminals 'Remote Shutdown 2'• Only connect the signalling lines at one single point of the negative output voltage;a voltage drop between the connection point and the minus terminals must not exceed 0.5V, even at maximum load!
Additional data regarding remote shut-down:•••••

Output current
Power consumption
Residual voltage at zero load
Startup delay
Switching operations per min.

< 5mA (mean)
<2.5W
<3V
<500ms<1091
Efficiency [%]b) Remote shut-down by control voltage:
Positive voltage is applied to 'Remote Shutdown 1' against minus output (reference potential)• Unit turns on, when positive voltage (3...30V, 0.3...2mA) is applied to 'Remote Shutdown 1' against the minus output• Unit switches off at <0.6V• Input voltages of 0.6...3V and negative voltages are not defined

92

90
89
100 VAC
120 VAC
230 VAC

88
87
510
1520
Output current Iout [A]25

Hold-up time (min., at Vout =24V)
60
Hold-up time [ms]a) Remote shut-down by switch:
Unit turns on when the signal terminals 'Remote Shutdown 1 and 2' are closed by aswitch (R<10!).
• Connect the switch contact with the signal terminals Remote Shutdown 1 and 2, only! Ensure the switch contact is not connected to the output voltage or in contact
with any separate voltages.
• Unit is in standby mode with open switch contact (R>100k!)

30Efficiency (typ., at Vout =24V)

60% load
100% load
125% load

5040302010at AC 230V

0180

190

200210220Input voltage VACin [V]

230

240

100
Hold-up time [ms]The remote On/off control is activated via the signal terminals 'Remote Shutdown 1 and2'. The unit is delivered with the signal terminals jumpered (control state is 'On' withthe terminals jumpered).

2560% load
100% load
125% load

80604020at AC 115V

0859095

100 105 110 115 120 125 130
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 15D-81925 München
Tel.: +49 89 9278-0
Fax: +49 89 9278-199
www.puls-power.com

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s20e115 / 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 number

Description

SL20.100 / .101
SL20.110 / .111
SL20.115
SL20.300 / .301
SLZ01

AC 230 V, no PFC / incl. PFCAuto 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 SL20Bottom 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 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