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X Series Data Sheet
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375, 500 Watt AC-DC and DC-DC DIN-Rail Converters
Models with four powertrains have one or two outputs.
Double-output models exhibit individual control of each
output.
The input voltage is fed via fuse, filter, and rectifier to the
powertrains with main transformers designed in planar
technique. The input filter with very small input capacitance
generates virtually no inrush current. An input transient
suppressor protects the converter against high voltage peaks
and surges. Input over- and undervoltage lockout as well as
input current limitation protect the converter from operation
outside of its specification. The input voltage waveform is
sensed by the primary control logic to allow active power
factor correction, forcing the input current to follow the input
voltage waveform.
The secondary side of each main transformer supplies via the
rectifier diode a large electrolytic output storage capacitor
Electrical Input Data
General conditions:
T A = 25 °C, unless T C is specified.
Table 3: Input data LW models
providing for the hold-up time. Double-output models exhibit
an individual control logic for each output. The output voltage
and the output current are measured and fed back to the
primary control logic via an optocoupler. A second control loop
monitors the output voltage. It disables the output in the case of
a failure in the control logic and limits the output voltage.
Built-in temperature sensors monitor the internal temperature of
each powertrain. If the temperature exceeds the limit, the
converter reduces the output power continuously to keep the
temperature below its limit. A green LED on the front cover
confirms the presence of the output voltage(s).
The R input (option R, M1, or M2) allows for external adjustment
of the output voltage by means of a resistor or an external
voltage source. An external sensor can be connected to the R
input and allows for temperature-controlled battery charging;
see Accessories .
Input
AC-Input
LXR
DC-Input
AC-Input
LXN
DC-Input
Unit
Characteristic
Conditions
min
typ
max min
typ
max
min
typ max min
typ
max
V i
Operating input voltage
I o = 0 – I o nom
85 2
264
90 2
350 3
85 2
264
90 2
350 3
V
range
T c – T c max
V i nom
Rated input volt. range
100
(230) 240
220
100 (230) 240
220
f i
Rated input frequency 1
50 – 60
--
50 – 60
--
Hz
I i
Input current
I o nom, V i = V i nom
1.9
1.95
2.6
2.6
A
I o nom, V i = V i min
5.2
5.0
7.0
6.6
P i0
I inrush
C i
PF
V i RFI
No-load input power
Inrush current
Input capacitance
Power factor
Conducted input RFI
V i min – V i max
V i max , t > 0.1 ms
V i nom = 230 V, I o nom
EN 55011/55022
0.90
3
5
5
A
3
5
5
--
A
0.90
3
5
6
A
3
5
6
--
A
W
A
μF
Radiated input RFI
V i nom, I o nom
f switch
Switching frequency
130
130
130
130
kHz
1
2
3
For operating frequencies <47 Hz and >63 Hz contact Power-One. The converters have been tested up to 440 Hz.
Output power derating at low input voltage and/or high case temperature T C ; see Output Power Derating .
V i ≤ 250 VDC for models with option F.
BCD20021-G Rev AC1, 13-May-2013
Page 5 of 21
www.power-one.com
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