Brochure/Catalogue

Mains lter
Mains lter
WAVEFILTERS for simple radio interference
suppression in the control cabinet
The WAVEFILTER series eliminates the time consuming
work of screwing in mains lters. These lters are simply
clipped on to the TS35 rail and connected to the device
requiring suppression. The two-stage WAVEFILTER with
overall width 22.5 mm in 3 A, 6 A and 10 A versions offers
high attenuation.
The WAVEFILTER, with current-compensating choke, is ideal
for applications in drive technology and control/automation
systems, e.g. for suppressing continuous interference
types such as “noise” or “ripple” caused by interfering
radiation from other systems, or interference from frequency
converters and switch-mode power supplies. A short, low
ohm mass connection is required for the WAVEFILTER to
function perfectly. We recommend earthing all devices
directly with the largest possible cross-section to a central
earthing point in the control cabinet.
Interference signals
We distinguish between two types of induced transient and
continuous interference signals: symmetrical (differential
mode) and asymmetrical (common mode). The symmetrical
interference signals generate a voltage between the signal
leads of the system. The asymmetrical interference voltages
occur between the signal leads and earth.
The WAVEFILTER is suitable for attenuating both kinds of
interference signal. In addition, WAVEFILTER 10 A also has
an earthing conductor choke. This earthing conductor choke
supports both attenuation on the earthing conductor for the
lter and additional attenuation of asymmetrical interference
voltages.
The WAVEFILTER has cULus approval.
Insertion loss
WAVEFILTER 3 A
WAVEFILTER 6 A
WAVEFILTER 10 A
80
70
60
50
40
30
20
10
0
-10
-20
10K 100K 1M 10M 100M 200M
dB
Hz
50 Ohms insertion loss (CISPR 17)
– Differential Mode (symmetrical)
– Common Mode (asymmetrical)
80
70
60
50
40
30
20
10
0
-10
-20
10K 100K 1M 10M 100M 200M
dB
Hz
50 Ohms insertion loss (CISPR 17)
– Differential Mode (symmetrical)
– Common Mode (asymmetrical)
80
70
60
50
40
30
20
10
0
-10
-20
10K 100K 1M 10M 100M 200M
dB
Hz
50 Ohms insertion loss (CISPR 17)
– Differential Mode (symmetrical)
– Common Mode (asymmetrical)
E
E.2 2028840000
Mains filter