The FXP1500/1800 front-ends are power-factor-corrected (PFC) and
provide a 48 VDC (1500 or 1800 watt) output, and can be used in hot-swap
redundant systems. Their very small dimensions allow configuration of up
to three units in a 1U rack. The FXP front-ends have a rear-mounted AC
connector. The highly efficient thermal design with internal-fan cooling
permits their use over wide temperature ranges and provides very high
reliability.
Status information is provided with front panel LEDs, logic signals, and via
2 2
an I C management interface. In addition, the I C bus can enable the power
supply, set high fan speed, adjust the output voltage, and set the output
current limit. The FXP1500/1800's meet international safety standards and
display the CE-Mark for the European Low Voltage FXR-3-48G power-
shelf solutions provide rectification, system management, and power
distribution, while maintaining high reliability and offering flexibility for
future expansion. The power shelves can be configured with up to three
hot-swappable 1500 or 1800-watt AC-DC front-ends.
RoHS compliant for all six substances
3
High density front-ends 15.2 to 18.3 W/in
Wide input voltage range 85 to 264 VAC
12 V standby voltage, 1 A per front-end
Highly efficient topology reduces operating costs
2
I C interface status and control
2
I C voltage and current limit setting
Analog output voltage setting
Overtemperature, output overvoltage, and output
overcurrent protection
ORing circuits for true redundant operation:
V : ORing FETs; V : ORing Diodes
o1 o2
Status LEDs: AC OK, DC OK, and
Fan Fail/Overtemperature Fail
Telecommunications
Data Communications
Servers
Distributed Power
2
FXP1500/1800; FXR-3-48G
INPUT VOLTAGE OUTPUT 1 OUTPUT 2
RATED POWER COMPATIBLE
MODEL VAC
2
Vo1 nom Io1 max Vo2 nom Io2 max
W SHELF
1
AUTO SELECTED
VDC ADC VDC ADC
105 264 48 32.2 12 1 1512
FXP1500-48G FXR-3-48G
85 105 48 25.4 12 1 1212
180 264 48 39.2 12 1 1812
FXP1800-48G 105 180 48 32.2 12 1 1512 FXR-3-48G
85 105 48 25.4 12 1 1212
1
The available output power is automatically adjusted depending on the input voltage.
2
1U standard racks are available from Bel Power Solutions. See the Rack (Power Shelf) section of this data sheet for configurations
and details.
Stress in excess of the absolute maximum ratings may cause performance degradation, adversely affect long-term
reliability, or cause permanent damage to the converter.
PARAMETER CONDITIONS / DESCRIPTION MIN MAX UNIT
Continuous 264
Input Voltage VAC
Transient, 60 ms max. 300
Vi min-Vi max, Io nom, cooling by internal fan
Operating Ambient Temperature @ 100 % load 0 50
C
@ 50 % load 0 70
Storage Temperature Non-Operating -40 85 C
Specification is valid for input voltage, load, and temperature ranges, unless otherwise stated.
PARAMETER CONDITIONS / DESCRIPTION MIN NOM MAX UNIT
Input Voltage 85 230 264 VAC
Input Frequency 47 50/60 63 Hz
Turn-On Input Voltage Ramping up 79 85 VAC
Turn-Off Input Voltage Ramping down 70 78 VAC
115/230 VAC acc. ETS 300 132-1
Inrush Current Limitation
< 100 ms 50 Apk
Hold-Up Time After last AC line peak ,Vi = 230 VAC, Po nom 20 ms
Power Factor Vi nom, Io nom 0.95 W/VA
Efficiency V = 230 VAC, I , T = 25 C 89 90 %
i o nom C
Max Input Current 20 A
rms
Input Connector 16 A 20 A / 250 VAC; according to IEC320 C19
tech.support@psbel.com