slr2e100 / 040121 1/2
Data sheet
The
Redundant
Variant
Baby with redundancy
SLR2.5
• Input: AC 230V/115V, DC 160-375V
• Output: 24V/2.5A
• High overload current, no switch-off
• Quasi-Wide-Range Input
• N+1 redundancy, RDY relay contact
• NEC Class 2 Power Supply
CUL/CSA-C22.2
EMC and
Low Volt.
UL60950 E137006
UL508 LISTED
IND. CONT. EQ.
No 950-M90
18 WM, 60°C
Directive
CB
scheme
IEC60950
Input
Efficiency, Reliability etc.*
Construction / Mechanics*
Output
* *For further information see data sheets „The SilverLine“, „SilverLine Family
Branches“ and mechanics data sheet
Input voltage AC100-120/220-240 V (switchable), 47-63 Hz
(85-132 VAC / 176-264 VAC, 160-375 VDC, see
also „Output: Continuous Loading“)
Quasi-Wide-Range Input: With the switch in the 230V position the pow-
er-supply unit operates at low and moderate loads at any input voltage
between 95 and 264 V AC (see ’Output’ at the right side).
Note: At DC input, always leave the switch in the 230V position
Input current < 1.3 A (switch in 115V position)
< 0.7 A (switch in 230V position)
DC input current
at open output
typ. 5.3 mA at 110 VDC, 3.9 mA at 300 VDC
(preserves battery sources)
Inrush current typ. < 25 A at 264 V AC and cold start
To be fused with a 10A, B-type 'circuit-breaker' switch based on the
usual thermomagn. overload sensing principle (used anyway to fuse
the input lines). In addition, the unit contains an internal fuse (not ac-
cessible)
Transient
handling
Transient resistance acc. to VDE 0160 / W2
(750 V / 1.3 ms), for all load conditions.
Hold up time > 20 ms at 196 VAC, 24 V / 2.5 A
(see diagram overleaf)
Efficiency typ. 86.5 % (230 VAC, 24 V / 2.5 A)
Losses typ. 9.4 W (230 VAC, 24 V / 2.5 A)
MTBF 700,000 h acc. to Siemensnorm SN 29500
(24 V/2.5 A, 230 VAC, T
amb
= +40 °C)
Life cycle (electrolytics) The unit exclusively uses longlife electrolytics,
specified for +105°C (cf. ’The SilverLine’, p.2).
Housing dimensions and Weight
• W x H x D
• Free space for
ventilation
•Weight
49 mm x 124 mm x 102 mm (+ DIN rail)
above/below 25 mm recommended
right 10 mm recommended (front view)
470 g
Design advantages:
• Input and output pluggable by means of Combicon® plug connec-
tor.
• Ensure strain relief of the plug connectors
when installing the unit.
• Input and output are strictly apart from each other and so cannot be
mixed up (input below, output above).
Rated output voltage 24 V DC
For balanced current sharing during parallel operation:
Soft characteristic (25.2 V DC ±2% at no-load, 24 V DC ±0.5% at nomi-
nal load, almost linear characteristic curve)
Output noise
suppression
Radiated EMI values below EN 61000-6-3, even
when using long, unscreened output cables.
Ambient temperature
range T
amb
Operation: -10°C...+70°C (>60°C: Derating)
Storage: -25°C...+85°C
Output protected against short circuit, open circuit and overload
Derating typ. 1.5 W/K (at T
amb
=+60°C...+70°C)
Voltage regulation better than 2% Vout overall
Ripple / Noise < 30 mV
PP
, (20 MHz bandw., 50 Ω measurem.)
Overvolt. protection typ. 32 V
Parallel operation yes; current sharing via soft characteristic
(see diagram)
Power back immunity 26 V
Front panel indicator Green LED
RDY relay contact
•Type
•closes
• opens
• Electrical isolation
• Contact rating
normally open contact
when output voltage > 22.1V ±4%
when output voltage < 19.8V ±4%
500V DC to output voltage
1A at 28V DC
Continuous loading
(at T
amb
= -10°C...+60°C,
convection cooling),
see also diagram over-
leaf. For start at
T
amb
<0°C and low input
voltage, please contact
PULS.
* For start with DC input
> 95 V DC needed
Switch AC/DCin Iout
230V 176-264 V ACin 2,5 A
95-176 V ACin 1,5 A
160-375 V DCin 2,5 A
120-160 V DCin 2,0 A
80*-120 V DCin 1,5 A
Order information
Order number Description
SLR2.100
SL2.100
SLZ01
N+1 redundancy*
Basic version without redundancy*
Screw mounting set, two needed per unit
