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18
Mains choke selection
In common DC connections, the ACSM1 drive module(s) connected to AC
supply must be equipped with mains choke(s). Mains chokes are needed
•
to get the maximum DC power ratings from the ACSM1 drive module(s)
•
to reduce the AC input current (rms, peak) level
•
to meet the requirements for harmonic distortion
•
to balance the supply current in multiple AC input.
Mains choke data
Data for the mains chokes is given below.
Type
L
Ith
Imax
µH
A
A
CHK-01
6370
4.2
6.2
CHK-02
4610
7.6
11.4
CHK-03
2700
13.1
19.6
CHK-04
1475
22.0
26.3
CHK-05
1130
33.1
52.6
CHK-06
700
47.1
74.0
CHK-07
450
63.0
98.8
CHK-08
355
84.5
140.0
L
:
Mains choke nominal inductance
I
th
: Maximum allowed continuous current (rms) at 55°C ambient
temperature
I
max
: Maximum allowed short time current (rms). This current is allowed for
maximum 10 s.