2 Engineering
2.3 Safety and switching
34
DC1 Frequency Inverter
10/12 MN04020003Z-EN
www.eaton.com
2.3 Safety and switching
2.3.1 Fuses and cable cross-sections
The fuses and wire cross-sections allocated for power-side connections
depend on the rated mains current I
LN
of the frequency inverter (without
main choke).
The recommended fuses and their assignment to the frequency inverters are
listed in Page 176 the appendix.
The national and regional standards (for example VDE 0113, EN 60204) must
be observed and the necessary approvals (for example UL) at the site of
installation must be fulfilled.
When the device is operated in a UL-approved system, use only UL-approved
fuses, fuse bases and cables. The permissible cables must have a heat resis-
tance of 75 °C.
The connection terminals marked with
and the metallic enclosure (IP66)
must be connected to the earth-current circuit.
The leakage currents to earth (as per EN 50178) are greater than 3.5 mA.
They are listed for the individual ratings in the appendix, under the specific
technical data on Page 167.
A completely (360°) screened low impedance cable on the motor side is
required. The length of the motor cable depends on the RFI class and the
environment.
NOTICE
When selecting the cable cross-section, take the voltage drop
under load conditions into account.
The consideration of other standards (e.g. VDE 0113 or
VDE 0289) is the responsibility of the user.
→
As per the requirements in standard EN 50178, a protective
earth (PE) must be connected. The cable cross-section must be
at least 10 mm
2
or consist of two separately connected earthing
cables.
NOTICE
The specified minimum PE conductor cross-sections (EN 50178,
VDE 0160) must be maintained.
→
Choose the cross-section of the PE conductor in the motor lines
at least as large as the cross-section of the phase lines (U, V, W).
Содержание DC1-12011 Series
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Страница 12: ...0 About this manual 0 5 Units 8 DC1 Frequency Inverter 10 12 MN04020003Z EN www eaton com...
Страница 32: ...1 DC1 device series 1 12 Service and warranty 28 DC1 frequency inverter 10 12 MN04020003Z EN www eaton com...
Страница 52: ...2 Engineering 2 5 Motor and Application 48 DC1 Frequency Inverter 10 12 MN04020003Z EN www eaton com...
Страница 190: ...9 Appendix 9 9 Sinusoidal filter 186 DC1 Frequency Inverter 10 12 MN04020003Z EN www eaton com...