Input

Input voltage

AC100-240V (Wide Range), 47...63 Hz

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

Input current

External Fusing

Not required, unit provides internal fuse

(T3AH, not accessible)

Transient immunity

Transient resistance acc. to VDE 0160 / W2

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

Hold-up time

(see diagram below)

>171ms @ AC 230V, 24V / 2.1A

>97ms @ AC 196V, 24V / 2.1A

>17ms @ AC 100V, 24V / 2.1A

Efficiency, Reliability

Efficiency

Losses

typ. 88.5% (AC 230V, 24V / 2.1A)

(see also diagram below)

typ. 6.8W

(AC 230V, 24V / 2.1A)

MTBF (Reliability)

ca. 600.000 h 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. connectors: 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 plug connectors, 2 terminals/output;

mating connectors enclosed

Connector size range – input:

• flexible/solid cable

• Wire strip length

Ferrules admissible, 7mm recommended

Connector size range – output:

• flexible cable

• solid cable

• Wire strip length

Ferrules admissible, 6mm recommended

Design details – for your advantage:

• Standard plugs, meet various connector families (e.g CombiCon)

• Plugs allow measurement access

Diagrams

0

4

8

12

16

20

24

28

32

01

23

4

100-120V ACin

230V ACin

Output current Iout [A]

0

20

40

60

80

100

120

90,0

125,0

160,0

195,0

230,0

Pout=50W, typ.

Pout=50W, min.

Pout=25W, typ.

Pout=25W, min.

Input voltage V ACin [V]

72

74

76

78

80

82

84

86

88

90

0,3

0,6

0,9

1,2

1,5

1,8

2,1

100 V ACin

120 V ACin

230 V ACin

Output current Iout [A]

(min.)

Efficiency

Hold-up time with ACin

-10

0

10 20

30 40

50

60 70

20

30

50

60

40

10

0

a

b

c

Mounting

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

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

100-375 V DCin A-a A-a A-b

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

B

A

Derating

of output power

Ambient Temperature [°C]

Vout range

Output (incl. Logic)

Output voltage

• preset

DV 24-28V, adj. by front panel potentiometer

24V ±0.5% @ 2.1A

(25V at no load, see ’Parallel operation’)

Voltage regulation

Ripple/Noise

Overvoltage prot. (OVP) <40V

Output noise suppressionRadiated EMI values below EN 61000-6-3, even

when using long (>2m), unscreened output cables

Rated continuous

loading

up to 2.1A @ 24V / up to 1.8A @ 28V depending

cooling); for details see derating diagram below

Overload behaviour

PULS Overload Design™: No switch-off at over-

load/short-circuit, instead: up to 1.5

need no oversizing to start awkward loads.

Protection

Unit is protected against (also permanent) short-

circuit, overload and open-circuit

Derating

see diagram below

Parallel operation

Yes; load sharing by inclined characteristic curve

(

Power back immunity

35V

Operation indicator

DC OK output

if output voltage exceeds threshold value

Free-wheeling diode for relay is included in the

power supply unit

• Threshold

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 60950,

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).

Further 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 (below/above) and

have different wire access (90°/270° wiring), so cannot be mixed up

Technical Data ML50.111

Product information (ML50e111/040506), 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

PLUG Co

nnectors