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X Series
375, 500 Watt AC-DC and DC-DC DIN-Rail Converters
Electrical Input Data
General conditions:
= 25 °C, unless T
is specified.
T
A
C
Table 3: Input data LW models
Input
Characteristics
Operating input voltage
V
range
i
Rated input voltage
V
range
i nom
f
Rated input frequency
i
I
Input current
i
P
No-load input power
i0
Inrush current
I
inrush
C
Input capacitance
i
Power factor
PF
Conducted input RFI
V
i RFI
Radiated input RFI
Switching frequency
f
switch
For operating frequencies <47 Hz and >63 Hz contact the factory. The converters have been tested up to 440 Hz.
1
Output power derating at low input voltage and/or high case temperature T
2
V
≤ 250 VDC for models with option F.
3
i
Output Power Derating
The output power of LX models must be decreased at low input voltage and/or powertrain temperature above 125 °C.
The powertrain temperature depends on the output power, the input voltage, and the cooling method. At low input voltage the
losses increase. At the maximum specified environment temperature T
result, the output power has to be reduced according to the tables 4 and 5.
Note: The measurements have been made at the approval tests with free air convection cooling according to UL 60950-1, specified ambient
temperature T
, and with the converter built in a cardboard box according to UL 508 and a specified temperature outside the box T
A
tables give a correlation between T
contact the factory.
Table 4: P
derating according to UL 60950-1 at T
o
P
Model
o nom
[W]
LXR1601-6
371
LXR1701-6
371
LXR1801-6
371
LXN1601/2660-6
494
LXN1701-6
497
LXN1801/2880-6
494
AC Input
Conditions
min
–
= 0
I
I
o
o nom
85
2
T
– T
c
c max
100
50 – 60
1
= V
I
V
o nom,
i
i nom
= V
I
V
o nom,
i
i min
–
V
V
i min
i max
, t > 0.1 ms
V
i max
= 230 V, I
V
0.90
i nom
o nom
EN 55011/55032
V
I
i nom,
o nom
or T
and the case temperature T
A
out
= 60 °C, or according to UL 508 at T
A
T
C max
°
[
C]
V
84
84
84
84
84
84
© 2021 Bel Power Solutions & Protection
LXR
DC Input
typ
max
min
typ
max
264
90
350
2
(230)
240
220
-
1.9
1.95
5.2
5.0
3
3
5
5
5
5
-
A
A
130
130
; see Output Power Derating.
C
free air convection cooling might be insufficient. As a
A
(measuring point T
C
C
Derate below
[VAC]
V
[VDC]
i
i
125
115
125
115
125
115
125
115
125
115
125
115
LXN
AC Input
DC Input
min
typ
max
min
85
264
90
3
2
2
100
(230)
240
50 – 60
2.6
7.0
3
5
6
0.9
A
130
see Mechanical Data). For models not specified,
= 50 °C
out
Derate by
[W/V]
- 1.8
- 1.8
- 1.8
- 1.8
- 2.5
- 2.5
tech.support@psbel.com
belfuse.com/power-solutions
BCD20021-G Rev AF, 29 November 2021
Unit
typ
max
350
3
V
220
-
Hz
2.6
A
6.6
3
W
A
5
6
µF
-
A
kHz
130
. The
out
Page 6 of 26
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