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Line Current Harmonics
The product standard EN 61800-3 refers to EN 61000-3-2 which specifies
limits for harmonic current emissions for equipment connected to low voltage
public supply network.
The EN 61000-3-2 applies to low-voltage networks interfacing with the public
supply at the low-voltage level. It does not apply to private low voltage
networks interfacing with the public supply only at the medium- or high-
voltage level.
Public Low Voltage Network
The limits and requirements of the EN 1000-3-2 apply for equipment with
rated current ≤16 A. The ACS140 is a professional equipment to be used in
trades, professions, or industries and is not intended for sale to the general
public.
The ACS140 with a total rated power greater than 1 kW conforms to EN
61000-3-2. Below 1 kW, use combinations of input chokes and ACS140 as
specified in Table 12 or ask the supply authority for permission to connect.
Table 12 Combinations of input chokes and ACS140 which comply with
class A limits of EN 61800-3-2.
* The ACS-CHK-A3 includes three single phase chokes, use one choke only.
** The ACS-CHK-A3 includes three single phase chokes, use two chokes connected in serial.
Private Low-Voltage Network
If ACS140 is used in an industrial installation for which the EN 61000-3-2 is
not relevant, a reasonable economical approach which considers the total
installation shall be used.
Typically a single low power equipment like ACS140 does not cause a
significant voltage distortion to network. However, the user shall be aware of
the values of the harmonics currents and voltages occurring within the power
supply system before connecting the ACS140, as well as the internal
impedance of the supply system. The current harmonic levels of the ACS140
under rated load conditions are available on request and the assessment
procedure given in Appendix B of the EN 61800-3 may be used as guide.
Converter type Input choke (IP21) Input choke (IP00)
ACS141-K18-1 ACS-CHK-A3 * SACL21
ACS141-K25-1 ACS-CHK-A3 ** SACL21+SACL21
ACS141-K37-1 ACS-CHK-A3 ** SACL21+SACL21
ACS141-K75-1 ACS-CHK-A3 ** -
ACS143-K75-3 ACS-CHK-A3 -
ACS143-1K1-3 ACS-CHK-A3 -
ACS143-1K6-3 ACS-CHK-A3 -
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