VF-S250-48A CUI Inc, VF-S250-48A Datasheet - Page 2

• Manufacturer Part Number: VF-S250-48A
• Description: POWER SUPPLY 250W 48V U-FRAME
• Manufacturer: CUI Inc
• Series: V-Infinityr

Specifications of VF-S250-48A

• Voltage - Output: 48V
• Number Of Outputs: 1
• Power (watts): 250W
• Applications: Commercial
• Power Supply Type: Switching (Open Frame)
• Voltage - Input: 90 ~ 264VAC
• Mounting Type: Chassis Mount
• 1st Output: 48 VDC @ 5.21A
• Size / Dimension: 5.00" L x 3.20" W 1.50" H (127mm x 81.3mm x 38.1mm)
• Power (watts) - Rated: 250W
• Operating Temperature: 0°C ~ 70°C
• Efficiency: 83%
• Approvals: CB, CE, cUL, TUV, UL
• Line Regulation: ±1%
• Load Regulation: ±1%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 102-2167

PART NUMBER: VF-S250-XXA
INPUT
parameter
input frequency
input voltage
input current
inrush current
power factor
OUTPUT
parameter
transient response
overshoot
turn on delay
hold up time
adjustability
LED display
power good
fan drive
PROTECTION CIRCUIT
parameter
Input fuse
overload
short circuit
output over-voltage
over temp.
20050 SW 112
th
conditions/description
90-132 / 180-264 auto-selectable
At 110-120 VAC
At 200-240 VAC
peak measured at 115 VAC at full load, cold start
peak measured at 230 VACat full load, cold start
Passive Power Correction meets EN61000-3-2 class A
conditions/description
Output voltage returns to within 1% in less than
2.5 mS for a 50% load change. Peak
transient does not exceed 5%.
Turn-on and turn-off overshoot shall not exceed
5% over nominal voltage.
At 120 VAC
At 120 VAC and 80% of rated maximim load
Adjustable with built-in trim pot.
When green (LED1) is on the power supply is operating normally.
Designated as PG on the CN1. This signal
goes high 100-500 mS after the output reaches regulation.
It goes low at least 1 mS before loss of regulation.
12 VDC/300mA for external fan
conditions/description
Built-in ac fuse. A blown fuse usually indicates permanent
damage to the power supply serviceable by factory only.
Current limiting starts at 110-140% of the rated output current in foldback mode and
recovers automatically.
Short circuit can be continuous. Recovers automatically upon removal of short.
Output is protected agaist overvoltage. Unit shuts down and latches
when voltage at output terminals exceeds 130%. AC input needs to be
reset to restart the power supply.
Power supply shuts down when temperature is in excess of 85 ºC. Auto recovery.
Ave. Tualatin, Oregon 97062
phone
phone [phone] fax
DESCRIPTION: switching power supply
fax [phone]
90/180
min
min
47
20
nom
nom
±5%
132/264
max
max
63
35
70
www.v-infinity.com
6
3
1
rev.
page
date
VAC
units
units
second
Hz
A
A
A
A
mS
01/2011
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