cui.com
date 07/19/2013 page 2 of 4
CUI Inc │ SERIES: VMS-81 │ DESCRIPTION: AC-DC POWER SUPPLY
INPUT
parameter conditions/description min typ max units
voltage 90 260 Vac
frequency 47 63 Hz
input current
at 100 Vac, full load
at 240 Vac, full load
1.2
0.4
A
A
inrush current
at 115 Vac, full load, cool start at 25 °C
at 230 Vac, full load, cool start at 25 °C
28
56
A
A
leakage current at 240 Vac/60 Hz 0.1 mA
power factor correction at 240 Vac, full load 0.95 1
no load power consumption at 230 Vac 0.5 W
OUTPUT
parameter conditions/description min typ max units
line regulation full load ±1 %
load regulation at 230 Vac ±5 %
hold-up time at 110 Vac, full load 16 ms
start-up time at 100 Vac, full load 0.3 2 s
temperature coeffi cient ±0.4 %/°C
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection recovers automatically 112 132 %
over current protection recovers automatically 110 150 %
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
isolation voltage
input to output (for 1 minute, 10mA)
input to ground (for 1 minute, 10mA)
6,653
2,121
Vdc
Vdc
isolation resistance at 500 Vdc 50 MΩ
safety approvals IEC 60601-1, EN 60601-1, UL 60601-1
conducted emissions EN60601-1-2/EN55011 class B
radiated emissions EN60601-1-2/EN55011 class B
harmonics EN61000-3-2 class D
ESD IEC61000-4-2, contact ± 6kV/ air ± 8kV
radiated immunity IEC61000-4-(2, 3, 4, 5, 6, 8, 11)
EFT/burst IEC61000-4-4, ± 2kV
surge IEC61000-4-5 line to line: ± 1kV, line to earth: ± 2kV
voltage dips & interruptions IEC61000-3-3, IEC61000-4-11
MTBF MIL-HDBK-217F, at 25°C 100,000 hours
RoHS compliant yes
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature see derating curve 0 70 °C
storage temperature -40 85 °C
operating humidity 095%
storage humidity 095%
operating altitude 3000 m
For more information, please visit the product page.
