Nord Drivesystems SK 200E Series, Manual

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NORDAC SK 200E Manual
32 Subject to technical alterations BU 0200 GB
2.4 Voltage limitation filter SK CIF
2.4.1
General information
Modules SK CIF-323-20, SK CIF-323-40, SK CIF-340-30 and SK CIF-340-60 are voltage limitation filters
corresponding to CSA 22.2 No. 14-5 / UL508C Section 48 for the reduction of a 5kV surge impulse (rising
flank 1,2µs / falling flank 50µs) to a maximum of 300% of the amplitude of the rated voltage (230Vac for
SK CIF 323-20/40 and 3x400Vac/460Vac/480Vac/500Vac for SK CIF-340-30/60).
ATTENTION
The modules SK CIF-323-x0 may only be used in combination with a suitable mains choke
(L
min
= 3 x 0,73 mH) (see connection plan).
With SK CIF-340-x0 modules, the use of a mains choke is not essential, but is recommended.
Note
With the use of a mains choke, the effective input currents of the frequency inverter are reduced to
approximately the values of the output currents. Several frequency inverters may be connected to a
choke - filter combination. In this case, the sum of the input currents must not exceed the rated
current of the filter.
2.4.2
Type code
SK CIF-323-20
Rated current: 20 = 20A , 30 = 30A, 40 = 40A, 60 = 60A
Mains voltage: x23 = 230V , x40 = 400V
Number of mains phases: 3 = 3-phase
Device series: CIF = voltage limitation filter (CSA - Filter)