![background image](http://html.mh-extra.com/html/abb/ach480/ach480_hardware-manual_2507047.webp)
Symmetrical shielded cable reduces electromagnetic emission of the whole drive system
as well as the stress on motor insulation, bearing currents and wear.
Metal conduit reduces electromagnetic emission of the whole drive system.
The protective conductor must always have an adequate conductivity.
Unless local wiring regulations state otherwise, the cross-sectional area of the protective
conductor must agree with the conditions that require automatic disconnection of the
supply required in 411.3.2. of IEC 60364-4-41:2005 and be capable of withstanding the
prospective fault current during the disconnection time of the protective device. The
cross-sectional area of the protective conductor can either be selected from the table
below or calculated according to 543.1 of IEC 60364-5-54.
This table shows the minimum cross-sectional area of the protective conductor related
to the phase conductor size according to IEC/UL 61800-5-1 when the phase conductor
and the protective conductor are made of the same metal. If this is not so, the
cross-sectional area of the protective earthing conductor shall be determined in a manner
which produces a conductance equivalent to that which results from the application of
this table.
Minimum cross-sectional area of the corres-
ponding protective conductor
Sp (mm
2)
Cross-sectional area of the phase conduct-
ors
S (mm2)
S
1)
S ≤ 16
16
16 < S ≤ 35
S/2
35 < S
1) To comply with standard IEC/EN 61800-5-1 (UL 61800-5-1)
•
use a protective earth conductor with a minimum cross-sectional area of 10 mm2 Cu or 16 mm2 Al (as an
alternative when aluminum cables are permitted),
or
•
use a second protective earth conductor of the same cross-sectional area as the original protective earth
conductor,
or
•
use a device that automatically disconnects the supply if the protective earth conductor is damaged.
If the protective earth conductor is separate (that is, it does not form part of the input power cable or the input
power cable enclosure), the minimum cross-sectional area must be:
•
2.5 mm2 when the conductor is mechanically protected,
or
•
4 mm2 when the conductor is not mechanically protected.
■
Typical power cable sizes
See the technical data.
Guidelines for planning the electrical installation 47
Summary of Contents for ACH480
Page 1: ... ABB DRIVES FOR HVAC ACH480 drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 14: ...14 ...
Page 22: ...22 ...
Page 28: ...28 ...
Page 38: ...38 ...
Page 44: ...44 ...
Page 60: ...60 ...
Page 86: ...86 ...
Page 110: ...110 ...
Page 114: ...114 ...
Page 122: ...122 ...
Page 156: ...Frame R1 Frame R1 front side IP20 UL open type 156 Dimension drawings ...
Page 157: ... Frame R1 bottom rear IP20 UL open type Dimension drawings 157 ...
Page 158: ... Frame R1 front side UL Type 1 kit installed 158 Dimension drawings ...
Page 159: ... Frame R1 bottom rear UL Type 1 kit installed Dimension drawings 159 ...
Page 160: ...Frame R2 Frame R2 front side IP20 UL open type 160 Dimension drawings ...
Page 161: ... Frame R2 bottom rear IP20 UL open type Dimension drawings 161 ...
Page 162: ... Frame R2 front side UL Type 1 kit installed 162 Dimension drawings ...
Page 163: ... Frame R2 bottom rear UL Type 1 kit installed Dimension drawings 163 ...
Page 164: ...Frame R3 Frame R3 front side IP20 UL open type 164 Dimension drawings ...
Page 165: ... Frame R3 bottom rear IP20 UL open type Dimension drawings 165 ...
Page 166: ... Frame R3 front side UL Type 1 kit installed 166 Dimension drawings ...
Page 167: ... Frame R3 bottom rear UL Type 1 kit installed Dimension drawings 167 ...
Page 168: ...Frame R4 Frame R4 front side IP20 UL open type 168 Dimension drawings ...
Page 169: ... Frame R4 bottom rear IP20 UL open type Dimension drawings 169 ...
Page 170: ... Frame R4 front side UL Type 1 kit installed 170 Dimension drawings ...
Page 171: ... Frame R4 bottom rear UL Type 1 kit installed Dimension drawings 171 ...
Page 172: ...172 ...
Page 180: ...180 ...
Page 198: ... Declaration of conformity 198 The Safe torque off function ...
Page 206: ...Dimensions 206 BIO 01 I O extension module ...
Page 212: ...Dimensions 3AXD50000031148 rev A 212 BREL 01 relay output extension module ...