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T Series Data Sheet
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Electromagnetic Compatibility (EMC)
A suppressor diode or a metal oxide VDR (depending on type)
together with an input fuse and an input filter form an effective
Electromagnetic Immunity
Table 15: Immunity type tests
500 Watt AC-DC Converters
protection against input transient voltages, which typically
occur in most installations, but especially in battery-driven
mobile applications. The T Series has been successfully
tested to the following specifications:
Phenomenon
Standard
Level
Coupling
Value
Waveform
Source
Test
In
Perf.
mode 1
applied
imped.
procedure
oper. crit. 2
Electrostatic
IEC/EN
4
contact discharge
8000 V p
1/50 ns
330 ?
10 positive and
yes
A
discharge
(to case)
61000-4-2
air discharge
15000 V p
10 negative
discharges
Electromagnetic
IEC/EN
3
antenna
10 V/m
AM 80%
n.a.
26 – 1000 MHz
yes
A
field
61000-4-3
1 kHz
Electrical fast
IEC/EN
4
capacitive, o/c
2000 V p
bursts of 5/50 ns
50 ?
60 s positive
yes
A
transient/burst
61000-4-4
4
direct,
±i/c, +i/–i
±4000 V p
2.5/5 kHz over
15 ms; burst
period: 300 ms
60 s negative
transient per
coupling mode
Surge
IEC/EN
3
±i /c
±2000 V p
1.2/50 μs
12 ?
5 pos. and 5 neg.
yes
B
61000-4-5
+i/ –i
2 ?
surges per coupling
mode
Conducted
IEC/EN
3
i, o, signal wires
10 VAC
AM 80%
150 ?
0.15 – 80 MHz
yes
A
disturbances
61000-4-6
(140 dBμV)
1 kHz
1
2
i = input, o = output, c = case.
A = Normal performance, B = Temporary loss of function or degradation of performance, not requiring an operator.
Electromagnetic Emission
The radiated noise in the frequency range of 30 MHz to
300 MHz on the input- and the output-side stays below class A
according to EN 55011/22 measured with an antenna.
The radiated noise of the T converters between 30 MHz and
chromatized 19" rack, fitted with a front panel. For converters
mounted otherwise, e.g., wall-mounted with option B1 (base
plate), the radiated noise may be above level A.
[dBμV/m]
1 GHz is reduced, if the converter is built into a conductive
50
07039a
A
[dBμV]
07035a
40
B
80
70
60
50
40
30
A
B
30
20
10
20
10
0
[MHz]
0
Fig. 40
Conducted emissions (quasi-peak, typ.) at the input
according EN 55011/22, measured at V i nom and I o nom .
MHz
Fig. 41
Typ. radiated emissions (quasi peak) according to EN
55011/22, normalized to 10 m, measured on an open area
test site at V i nom and I o nom .
BCD20023 Rev AB, 02-Nov-2010
Page 21 of 31
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