PULS does it again:
practical, versatile and reliable likethe SilverLine – yet small likeno other.

Data Sheet

MiniLinewith DC 48-56V / 50W• Mounted and connected
in record time, no tools required• Adjustable output voltage
up to DC 56V• World-wide approvals (UL, EN, CSA,CB Scheme) for industry and office/home• 100-240V Wide Range Input• PULS Overload Design™
(high output overload capability)• Tiny: WxHxD = 45 x 75 x 91 mm• NEC Class 2 Power Supply

PULS GmbH, Arabellastrasse 15, 81925 Munich
Tel. +49.(0)89.9278-244, Fax: +49.(0)89.9278-199
sales@puls-power.com, http://www.puls-power.com

Mini is more.
ML50e105/040506

Technical Data ML50.105

SpriX Input

lamng CpsX Output

Input voltage

AC 100-240V (Wide Range), 47...63Hz
Admiss. limits: AC 85...264V (DC 85...375V)

Output voltage• preset

DC 48-56V (adj. by front panel potentiometer)
48V ± 0.5% @ 1.05A

Input current<1.0A (@ AC 100V, 50W Pout)<0.6A (@ AC 196V, 50W Pout)

Voltage regulation

stat. <1% Voutdyn. ±2% Vout over allExternal fusing

not required, unit provides internal fuse
(T3A15H, not accessible)

Ripple/Noise<200mVPP (20MHz bandw., 50 Ω measurem.)

Overvoltage prot. (OVP) <60V

Transient immunity

Transient resistance acc. to VDE 0160 / W2
(750V / 1.3ms), over entire load range

Rated continuousloading

Hold-up time(see diagram below)>170ms @ AC 230V, 48V / 1.05A>97ms @ AC 196V, 48V / 1.05A>17ms @ AC 100V, 48V / 1.05A

up to 1.05A @ 48V / 0.9A @ 56V (convectioncooling), depending on built-in orientation,Vin and Tamb
For details see derating diagram below

Overload behaviour

typ. 90%(AC 230V, 48V / 1.05A)(see also diagram below)
typ. 6W(AC 230V, 48V / 1.05A)

PULS Overload Design™: No switch-off at
overload/short-circuit, instead: up to 1.5 ⋅ Irated.
So you need no oversizing to start awkward
loads.

Protection

Unit is protected against (also permanent)
short-circuit, overload and open-circuit.

appr. 600.000h acc. to Siemensnorm SN 29500(48V / 1.05A, AC 230V, Tamb = +40°C)

Derating

depending on built-in orientation;
see diagram below

Prior to shipment, every unit undergoes the following tests in order toisolate any defective units which might suffer an early failure:• Run-in / burn-in (Full load, Tamb = +60°C, on/off cycle)• Functional test (100%)

Power back immunity

63V

Operating indicator

Green LED

X Construction, Mechanics, Installation

Ambient temperature range (measured 25mm below unit)• storage/transport-25°C ... +85°C• operation-10°C ... +70°C (for derating see diagram below)

X Efficiency, Reliability
Efficiency
LossesMTBF (Reliability)

X Environmental Data, EMC, Safety

Robust plastic housing (US Patent No. D442, 923S), fine ventilation gridon three housing sides to keep out small parts (e.g. screws), IP20

Humiditymax. 95% (without condensation)

Electromagnetic
emissions (EME)

EN 61000-6-3 (includes EN 61000-6-4)
Class B (EN 55011, EN 55022)

Electromagnetic
immunity (EMI)EN 61000-6-2 (includes EN 61000-6-1)

Ventilation/Cooling
Normal convection, no fan required• Free space f. cooling recom’d.: 25mm on sides with ventilation grid

Safe low voltage:
Prot. class/degree:

SELV (EN60950, VDE0100/T.410), PELV (EN50178)
Class I (EN60950) / IP20 (EN60529)

Easy snap-on mounting onto the DIN-rail (TS35/7,5 or TS35/15).
Unit sits safely and firmly on the rail; no tools required even to remove

The PSU complies with all major safety approvals for EU (EN 60 950,EN 60204-1, EN 50178), USA (UL 60950, E137006, UL508 LISTED, E198865),
Canada (CAN/CSA-C22.2 No 60950 [CUR], CAN/CSA-C22.2 No. 14 [CUL]),CB Scheme (IEC 60950).

Dimensions and weight• WxHxD45mm x 75mm x 91mm (+ DIN Rail)
Depth incl. terminals: 98mm (+ DIN Rail)240g• Weight
Mounting orientation

Connection,or(cf. ’Output’)by Spring Clamp terminals; uniformly firm hold,vibration-resistant and maintenance-free:
2 terminals per output

Connector size range• flexible cable• solid cable• Wire strip length

Design details – for your advantage:• All terminals are easy to reach as mounted on the front panel.
• Input and output are strictly apart from each other (input below, output above) and so cannot be mixed up.
• Mounting and connection do not require any screwdriver→ Easy, quick, durable and reliable installation.

0.3-2.5mm2 (28-12 AWG)
0.3-4mm2 (28-12 AWG)
Ferrules admissible
6mm (0.24in) recommended

X Diagrams

6456

9560

90

5040110V ACin32230V ACin24

Output power [W]48
Efficiency [%]Output voltage Vout [V]Vout range

85120V ACin80230V ACin

75407000,511,52Output current Iout [A]2,530,10,30,50,70,9
Output current Iout [A]1,1100AaBbMounting
201065012030168

Hold-up time with ACin
(at Vout = 48V, typ. + min.)Deratingof output power

Efficiency(@ Vout = 48V, typ.)0-1085-150 V ACin150-264 V ACin100-370 V DCin
85-100 V DCin
0A-a
A-a
A-a
B-b

A-b
A-a
A-a
B-b

A-c
A-b
A-b
B-b

10 20 30 40 50
Ambient temperature [°C]c

Hold-up time [ms]Output characteristic Vout/Iout(min.)8060
40
Pout=50W, typ.
Pout=50W, min.
Pout=25W, typ.
Pout=25W, min.

200607090

125160195
Input voltage V ACin [V]230

Product information (ML50e105), Rev.: 6. May 2004. 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.
PULS GmbH, Arabellastraße 15, D-81925 München X Tel: +49.(0)89.9278-244, Fax: +49.(0)89.9278-199, E-Mail: sales@puls-power.com X www.puls-power.com