date

10/26/2011

page

2 of 4

cui.com

CUI Inc

│ SERIES: VMS-20 │ DESCRIPTION: AC-DC POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

90

264

Vac

frequency

47

63

Hz

input current

0.5

A

inrush current

at 230 Vac, cold start at 25 °C

40

A

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

low line to high line, full load

±0.5

%

load regulation

10% to 100% full load

±1

%

hold-up time

115 Vac

10

ms

switching frequency

100

KHz

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over voltage protection

115

140

%

short circuit protection

continuous

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

input to output

5,656

Vdc

safety approvals

UL60601-1, IEC60601-1, EN60601-1

EMI/EMC

EN60601-1/EN61204-3/EN55022/CISPR Class B, EN55024

leakage current

0.1

mA

RoHS compliant

yes

MTBF

MIL-HDBK-217F, GB

400,000

hrs

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

see derating curve

-25

70

°C

storage temperature

-40

85

°C

operating humidity

non-condensing

93

%

MECHANICAL

parameter

conditions/description

min

typ

max

units

dimensions

2.38 x 1.60 x 0.80 (60.5 x 40.6 x 20.4 mm)

inch

weight

50

g

cooling method

free air convection

(see derating curves below)