BEL Melcher LXN1240-6M1G, Manual, Page: 8 / 26

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BCD20021-G Rev AF, 29 November 2021
Page 8 of 26
X Series
375, 500 Watt AC-DC and DC-DC DIN-Rail Converters
© 2021 Bel Power Solutions & Protection
Power Factor, Harmonics
All converters feature active power factor correction.
0
1
2
3
4
3 5 7 9 11 13
mA/W 04067a
Limit class D according
to IEC/EN 61000-3-2
Harm.
LXN1601-6
0 0.2 0.4 0.6 0.8 1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
PF
04066a
I
o
I
o nom
V
i
= 125 VAC
V
i
= 230 VAC
Fig. 4
Harmonic currents at input current, measured at
V
i
= 230 VAC, I
o
= I
o nom
(LXN1601-6)
Fig. 5
Power factor versus load
Electrical Output Data
Table 6a: Output data of 375 Watt standard models. General conditions: T
A
= 25 °C, unless T
A
is specified; R input open-circuit
Model
LXR1601 LXR1701 LXR1801
Unit
Characteristics Conditions min typ max min typ max min typ max
V
o nom
Output voltage nominal
1
V
i nom
, I
o nom
24.25 24.7 25.2 36.37 37.05 37.8 48.5 49.4 50.4
V
* 24.55 24.7 24.85 36.82 37.05 37.28 49.1 49.4 49.7
V
o worst
Output voltage range of
tolerance
V
i min
–
V
i max
,
I
o
= (0.1 – 1)
I
o nom
24.0 25.8 36.0 38.7 48.0 51.6
V
o L
Overvoltage protection 28.5 30 42.75 45 57 60
P
o nom
Nominal output power V
i
= 100 V – V
i max
371 371 371
W
I
o nom
Output current nominal V
i
= 100 V – V
i max
15 10 7.5 A
I
o L
Output current limit
3 V
i
= 100 V –
V
i max
15.1 17.2 10.1 11.4 7.57 8.7
I
op
Output current boost
4
typ. 1 s 22.5 15 11.3
Ripple and noise
V
i
= 230 VAC,
f
i
= 50 Hz, I
o nom
100 100 100
mV
pp
1100
2
1200
2
1200
2
∆ V
o u
Static line regulation 100 VAC –
V
i max,
I
o nom
±0.1 ±0.15 ±0.15 V
∆ V
o I
Static load regulation
(droop)
V
i nom
I
o
= (0.1 – 1) I
o nom
–0.4 –0.6 –0.8
v
od
Dynamic load regulation
Voltage deviation
Recovery time
V
i nom ,
I
o
= (0.5 ↔ 1) I
o nom
±1.2 ±1.5 ±1.8
40 80 80 ms
α
vo
Temperature coefficient
T
C min
– T
C max
±0.02 ±0.02 ±0.02 %/K
t
or
Start-up time
V
i
= 0
→ V
i nom,
I
o nom
700 700 700 ms
t
oh min
Hold-up time I
o nom,
V
o nom
→ 0.8 V
o nom
15 20 25
* Converters with version V105 or higher
1
Setting voltage with open R-input
2
Superimposed low frequency ripple at 2 •
f
i
3
Rectangular current limit characteristic (continuous operation)
4
Short-term peak power capability 150% of P
o nom
for approx. 1 s