Puls SL20.115 Data Sheet

SL20 with remote shut-down

SL20.115

scheme

IEC60950

UL508 LISTED IND. CONT. EQ.

18 WM, 60°C

• Input: AC 115/230V auto select

• Output: 24...28V / 480W (600W)

• 90% efficiency

• Ideal for parallel operation

• Remote shut-down

Data sheet

UL60950 E137006

CUL/CSA-C22.2

No 60950

Type approval

acc. to:

• IEC / EN60950

• EN50178 Overvolt. cat. III

• EN60204

EMC and

Low Volt.

Directive

Datasheet

Input

Input voltage AC 100-120V/220-240V,

47-63Hz, auto select

Rated tolerances

• Continuous operation

• Short-term (1 min) at 24V/20A

Input current I

Inrush current limiting with active bypass of the limiting resistor (NTC).

Inrush current I

Fuse loading I²t <5A

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

EN 61000-3-2 (harmonic current emissions [PFC]) is fulfilled

Transient handling

Hold-up time 30ms at 24V/20A, AC 230V

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

AC 85...140V resp. AC 170...280V

<10A (115V range); <5A (230V range)

<18A @ AC 264V (T <37A @ AC 264V (T

s (T

= +25°C, cold start)

amb

<8A

s (T

= +50°C, cold start)

amb

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

30ms at 24V/20A, AC 120V 15ms at 24V/20A, AC 100V

= +25°C, cold start)

amb

= +50°C, cold start)

amb

Efficiency, Reliability

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

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

MTBF 519.000h acc. to Siemensnorm SN29500

(24V/20A, 230V, T

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.

amb

= 40°C)

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 1/2

Output (signal terminals see overleaf)

Output voltage DC 24...28V, adjustable by (covered) front pan-

el potentiometer. Adjust. range guaranteed.

Output noise suppression

Ambient temperature range T

amb

Rated continuous loading with convection cooling:

•T

=0°C - 60°C 24V/20A resp. 28V/18A

amb

Derating 12W/K (at T

Voltage regulation better than 2% over all

Ripple

• Output charact. S

• Output charact. P

(S/P: Single/Parallel Mode)

Over-voltage protection At 33V ± 10%: switch to hiccup mode

Front panel indicators:

• Green LED on, when V adjusted (24V...28V)

• Red LED on, when V

Parallel 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

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

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

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

= 60-70°C)

amb

(incl. spikes (20MHz bandw.), 50Ω measurem. <20mV <40mV <100mV

out

(<0.1%)

(In: AC 230V, Out: 24V/20A)

(In: AC 184V, Out: 24V/20A)

> UT, where UT is appr. 2V below V

out

< U

out

Construction / Mechanics

Housing dimensions and Weight

•W x H x D

• Free space for ventilation

•Weight

Design advantages:

• All connection blocks are easy to reach as mounted on the front 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 number Description

SL20.115 SLZ02

220mm x 124mm x 102mm (+ DIN rail) above/below 70mm recommended left/right 25mm recommended 2,5kg

(wall mounting set; contains 2 pcs.)

Data sheet

Start / Overload Behaviour

Startup delay typ. 0.55s

Rise time appr. 20-80ms, depending on load

Overload behaviour Puls Overload Design (see right-hand diagram)

Advantages:

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

Signal terminals

The remote On/off control is activated via the signal terminals 'Remote Shutdown 1 and 2'. The unit is delivered with the signal terminals jumpered (control state is 'On' with the terminals jumpered).

a) Remote shut-down by switch:

Unit turns on when the signal terminals 'Remote Shutdown 1 and 2' are closed by a switch (R<10Ω).

• 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>100kΩ)

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

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 when being 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...0.5V

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 < 5mA (mean)

• Power consumption <2.5W

• Residual voltage at zero load <3V

• Startup delay <500ms

• Switching operations per min. <10

is applied to 'Remote Shutdown 1'

Output characteristic (typ.)

Output voltage Vout [V]

0 5 10 15 20 25 30

Efficiency (typ., at V

Efficiency [%]

5 10152025

Hold-up time (min., at V

Hold-up time [ms]

180 190 200 210 220 230 240

100

Hold-up time [ms]

85 90 95 100 105 110 115 120 125 130

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

Output current Iout [A]

=24V)

out

Output current Iout [A]

=24V)

out

60% load 100% load 125% load

Input voltage VACin [V]

60% load 100% load 125% load

Input voltage VACin [V]

100 VAC 120 VAC 230 VAC

at AC 230V

at AC 115V

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.

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