cui.com

date

01/17/2013 │ page 6 of 7

CUI Inc

│ SERIES: VDRS-240 │ DESCRIPTION: AC-DC DIN RAIL

DERATING CURVE

Ambient temperature (°C)

-25

40

50

40

60

100

80

125

150

60

100

80

40

60

20

0

88

Input Voltage (Vac) 60 Hz

264

100

Output power vs. Ambient temperature

Output power vs. Input Voltage

110

120

0

10

20

30

70

112.5

for 3 sec. typ.

continuous

50

ACTIVE DC SIGNAL - RELAY CONTACT

Contact Close

When the output voltage reaches the adjusted output voltage

Contact Open

When the output voltage drops below 45%

Contact Ratings (MAX)

30 V / 1 A resistive load

Note:

1. Derating may be needed under low input voltage. Please check the derating curve for more details.

REMOTE ON/OFF

The power supply can be turned on/off by using the “remote control” function.

12 3 4 5 6

Relay Contact

DC ON

+V

ADJ.

+

SW1

SW2

ON

OFF

CN2

SW

External Power Source

I=6~20mA

SW2

INH+(3 PIN)/INH-(4 PIN)

Output Status

off

SW ON (>2.5 V)

ENABLE

off

SW OFF (<0.8 V)

DISABLE

on

SW ON (>2.5 V)

DISABLE

on

SW OFF (<0.8 V)

ENABLE

(default setting)

For more information, please visit the product page.