Input

Input voltage

AC 100-240V (Wide Range), 47...63Hz

Admiss. limits: AC 85...264V (DC 85...375V)

Input current

External fusing

not required, unit provides internal fuse

(T3A15H, not accessible)

Transient immunity

Transient resistance acc. to VDE 0160 / W2

(750V / 1.3ms), over entire load range

Hold-up time

(see diagram below)

>170ms @ AC 230V, 48V / 1.05A

>97ms @ AC 196V, 48V / 1.05A

>17ms @ AC 100V, 48V / 1.05A

Efficiency, Reliability

Efficiency

Losses

typ. 90%

(AC 230V, 48V / 1.05A)

(see also diagram below)

typ. 6W

(AC 230V, 48V / 1.05A)

MTBF (Reliability)

appr. 600.000h acc. to Siemensnorm SN 29500

Prior to shipment, every unit undergoes the following tests in order to

isolate any defective units which might suffer an early failure:

• Functional test (100%)

Construction, Mechanics, Installation

Robust plastic housing (US Patent No. D442, 923S), fine ventilation grid

on three housing sides to keep out small parts (e.g. screws), IP20

Dimensions and weight

• W x H x D

•Weight

45mm x 75mm x 91mm (+ DIN Rail)

Depth incl. terminals: 98mm (+ DIN Rail)

240g

Mounting orientation

,

or

(cf. ’Output’)

Ventilation/Cooling

• Free space f. cooling

Normal convection, no fan required

recom’d.: 25mm on sides with ventilation grid

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

Connection

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

Ferrules admissible

6mm (0.24in) recommended

Diagrams

0

10

20

30

40

50

60

-10

0

10

20

30

40

50

60

70

Ambient temperature [°C]

0

8

16

24

32

40

48

56

64

00,5

1

1,5

22,5

3

Output current Iout [A]

(min.)

Efficiency

Hold-up time with ACin

Derating

of output power

65

70

75

80

85

90

95

0,1

0,3

0,5

0,7

0,9

1,1

Output current Iout [A]

120V ACin

230V ACin

Vout range

230V ACin

110V ACin

a

b

c

Mounting

85-150 V ACin A-a A-b A-c

150-264 V ACin A-a A-a A-b

100-370 V DCin A-a A-a A-b

85-100 V DCin B-b B-b B-b

B

A

0

20

40

60

80

100

120

90

125

160

195

230

Input voltage V ACin [V]

Pout=50W, typ.

Pout=50W, min.

Pout=25W, typ.

Pout=25W, min.

Output

Output voltage

• preset

DC 48-56V (adj. by front panel potentiometer)

48V ± 0.5% @ 1.05A

Voltage regulation

Ripple/Noise

Overvoltage prot. (OVP) <60V

Rated continuous

loading

up to 1.05A @ 48V / 0.9A @ 56V (convection

cooling), depending on built-in orientation,

For details see derating diagram below

Overload behaviour

PULS Overload Design™: No switch-off at

overload/short-circuit, instead: up to 1.5

So you need no oversizing to start awkward

loads.

Protection

Unit is protected against (also permanent)

short-circuit, overload and open-circuit.

Derating

depending on built-in orientation;

see diagram below

Power back immunity

63V

Operating indicator

Green LED

Environmental Data, EMC, Safety

Ambient temperature range (measured 25mm below unit)

• storage/transport

• operation

-25°C ... +85°C

-10°C ... +70°C (for derating see diagram below)

Humidity

max. 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)

Safe low voltage:

Prot. class/degree:

SELV (EN60950, VDE0100/T.410), PELV (EN50178)

Class I (EN60950) / IP20 (EN60529)

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).

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, out-

put above) and so cannot be mixed up.

• Mounting and connection do not require any screwdriver

→ Easy, quick, durable and reliable installation.

Technical Data ML50.105

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

Tel: +49.(0)89.9278-244, Fax: +49.(0)89.9278-199, E-Mail: sales@puls-power.com

www.puls-power.com

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