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LOS, LOR, LOK4000 Series Data Sheet
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Electromagnetic Compatibility (EMC)
DIN-Rail Mountable AC-DC (DC-DC) Converters
Immunity
A metal-oxide VDR together with the input fuse and the input
filter form an effective protection against high input transient
Table 5: Immunity type tests
voltages, which typically occur in most installations. The LOS,
LOR and LOK series have been successfully tested to the
following specifications:
Phenomenon
Standard 1
Level
Coupling
Value
Waveform
Source
Test
Per-
mode 2
applied
imped.
procedure
form. 3
Electrostatic
discharge
IEC/EN
61000-4-2
2
air discharge
8000 V p
1/50 ns
330 ?
10 positive and
10 negative
B
discharges
Electromagnetic
IEC/EN
2
antenna
3 V/m
AM 80%
n.a.
80…1000 MHz
B
field
61000-4-3
1 kHz
900 MHz
1800 MHz
Electrical fast
transients/burst
IEC/EN
61000-4-4
3
direct, i/ , +i/– i
2 kV p
bursts of 5/50 ns
2.5/5 kHz over
50 ?
60 s positive
60 s negative
B
15 ms; burst
period: 300 ms
transients per
coupling mode
Surge
IEC/EN
3
i/
2 kV p
1.2 / 50 μs
12 ?
5 pos. and 5 neg.
A
61000-4-5
2
+i/– i
1 kV p
2 ?
surges per
Conducted
IEC / EN
2
box
3 VAC
AM 80%
150 ?
0.15 - 80 MHz
A
disturbances
61000-4-6
1 kHz
1
Related and previous standards are referenced in: Technical Information: Standards
2
i = input, o = output,
= PE case.
3 A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.
Emissions
Internal input filtering keeps the conducted noise of the
converters within the frequency range of 150 kHz to 30 MHz
below class B according to EN 55022 standards.
dBμV/m
50
40
LOK4601-2RC1, Vin=230 VAC, Vo=24 V, Io=2 A,
Antenna 10 m, 24-Jan-06, ESVS30, Dubnica
JM0016
EN 55022 B
dBμV
80
Peak, conducted Vi+, QP + AV, 2006-11-1, 14:02 h
LOK4601-2RC1, Ui=230 VAC, Uo=24 V Io= 2 A
JM076
30
20
10
60
EN 55022 B QP
EN 55022 B AV
0
30
50
100
200
500
MHz
40
Fig. 9
20
Radiated disturbances measured according to
EN 55011/55022 at V i nom and I o nom . LOK4601-2R, V i = 230
VAC.
0
0.2
0.5
1
2
5
10
20 MHz
Fig. 8
Typical conducted disturbances (quasi-peak, average) at the
input accord. to EN 55022 at V i nom and I o nom (LOK4601-2R)
BCD20035-G Rev AB, 23-Jun-2011
Page 7 of 10
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