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ACH550 User's Manual
IEC
NEC
Based on:
• EN 60204-1 and IEC 60364-5-2/2001
• PVC insulation
• 30°C (86°F) ambient temperature
• 70°C (158°F) surface temperature
• Cables with concentric copper shield
• Not more than nine cables laid on cable
ladder side by side.
Based on:
• NEC Table 310-16 for
copper wires
• 90°C (194°F) wire
insulation
• 40°C (104°F) ambient
temperature
• Not more than three
current-carrying conductors
in raceway or cable, or
earth (directly buried).
• Copper cables with
concentric copper shield
Max
load
current
(A)
Cu
cable
(mm2)
186
3x95
215
249
284
Max
load
current
(A)
285
Al
cable
(mm2)
2x
(3x95)
Max load
current
(A)
Cu wire size
(AWG/kcmil)
178
2/0
3x120
205
3/0
3x150
237
4/0
3x185
264
250 MCM or 2
x1
291
300 MCM or 2
x 1/0
319
350 MCM or 2
x 2/0
Note 1: Mains cable sizing is based on a correction factor of 0.71
(maximum of 4 cables laid on a cable ladder side by side, ambient
temperature 30°C (86°F), EN 60204-1 and IEC 364-5-523). For
other conditions, dimension the cables according to local safety
regulations, appropriate input voltage and the load current of the
drive. In any case, the cable must be between the minimum limit
defined in this table and the maximum limit defined by the terminal
size (see “Cable terminals”, below.)
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