cui.com

date 12/21/2021

│ page 2 of 10

CUI Inc

│ SERIES: VOF-550C │ DESCRIPTION: AC-DC POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

ac input

dc input

90

127

264

370

Vac

Vdc

frequency

47

63

Hz

current

at 90/115 Vac

at 230 Vac

6.5

3.0

A

A

inrush current

at 115 Vac, cold start

at 230 Vac, cold start

50

80

A

A

leakage current

at 264 Vac

contact leakage current

earth leakage current

0.1

0.5

mA

mA

power factor correction

at 115 Vac, full load

at 230 Vac, full load

0.98

0.95

no load power consumption

at 230 Vac, PS-ON signal held low (output disabled)

0.5

W

OUTPUT

parameter

conditions/description

min

typ

max

units

output capacitance

12, 15, 24 Vdc output models

27 Vdc output model

36 Vdc output model

48 Vdc output model

6,000

4,000

3,000

2,000

μF

μF

μF

μF

initial set point accuracy

full load

12,15, 24, 27 Vdc output models

all other output models

±2

±1

%

%

line regulation

rated load

±0.5

%

load regulation

0 ~ 100% load

±1

%

hold-up time

at 115 Vac

at 230 Vac

10

10

ms

ms

temperature coefficient

±0.03

%/°C

fan power

output power of 12 Vdc/0.5A

6

W

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over voltage protection

output shutdown, latching

12 Vdc output model

15 Vdc output model

24 Vdc output model

27 Vdc output model

36 Vdc output model

48 Vdc output model

15.6

19.5

31.2

35.1

46.8

60.0

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

over current protection

auto recovery, hiccup

105

%

short circuit protection

continuous, auto recovery, hiccup, recovery time <5s

over temperature protection

auto recovery

Additional Resources: Product Page | 3D Model