Embedded Power for
Business-Critical Continuity
UFE / UFR Series
Up to 6000 Watts
Total Power: Up to 6000 W
Input Voltage: 85 - 264 Vac
# of Outputs: Single + Aux
Output:
24 V & 48 V
Rev.8.26.09_154
UFE / UFR Series
of 6
Special Features
• Rack mounted chassis (1U, 19”)
• 3 hot pluggable rectifiers per 1U
chassis, up to 4 kW redundant or
6 kW available power (180-264
Vac input)
• Up to 2.6 kW redundant or 3.9
kW available per shelf at 90-132
Vac input
• Stackable to 6U high to provide
up to 36 kW available power
• Class B conducted EMI EN55022
(See Note 1)
• Automatic fan speed control with
fault reporting
• Auxiliary standby output, 11 V at
approximately 2.8 W
• High density up to 22 W/in3
• High efficiency up to 91%
• Floating as well as isolated main
output voltage allows positive or
negative polarity operation
• EU directive 2002/95/EC
compliant for RoHS
• 2 year warranty
• PMBus compliant
Safety
• VDE EN/IEC60950-1
• UL/cUL60950-1
Electrical Specifications
Output
Output Power:
Line regulation:
Load regulation (active share mode):
Turn-on delay:
Ambient temp. coefficient:
Voltage adjustability:
Adjustable PMBus command
(See Note 6)
Output setpoint accuracy:
Default output voltage:
setting 25 ºC
Voltage droop:
(operation set PMBus command)
Total error band:
Overshoot/undershoot:
Ripple and noise (20 MHz):
Dynamic regulation (except droop mode):
Current sharing (See Note 3):
Main output
Auxiliary output
Low line to high line
Full load to min. load
(See Note 4)
At full load, min. Vin
48 Vout
24 Vout
See Table 1
11 V ±15%, 2.875 W
±0.15% max.
±0.15% max.
5.0 s max.
±0.005%/ºC
42-57 Vdc
21-28.5 Vdc
48 Vout (active default)
24 Vout (active default)
±0.5%
48 V ± 0.5% @ 41 A
27 V ± 0.5% @ 48 A
24 Vout
48 Vout
-40 ºC to +70 ºC, FL range
Main output @ turn-on/off
Main output, -5 ºC and above
Auxiliary output
40.3 mV/A ± 3.0% from
10 A up to power limit
80.6 mV/A ± 3.0% from
10 A up to power limit
±1.0% max.
0%/0%
500 mV pk-pk, 150 mV rms
400 mV pk-pk, 150 mV rms
Peak dev., 25% load step Recovery 2.5% max.
time
1 ms max.
(I1-I2) / ILIMIT x 100
15% max.
All specifications are typical at nominal input, full load at 25 ºC ambient unless otherwise stated.
