
TECHNICAL DATA vacon • 17
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4.1.4 Vacon NXC Regenerative low harmonic drives – Mains voltage 525—690 V
High overload = Max current IS, 2 sec/20 sec, Rated overload current, 1 min/10 min
Following continuous operation at rated output current, rated overload current
for 1 min, followed by a period of load current less than rated current, and of
such duration that the r.m.s output current, over the duty cycle, does not exceed
rated output current (IH)
Low overload = Max current IS, 2 sec/20 sec, Rated overload current, 1 min/10 min
Following continuous operation at rated output current, rated overload current
for 1 min, followed by a period of load current less than rated current, and of
such duration that the r.m.s output current, over the duty cycle, does not exceed
rated output current (IL)
Mains voltage 525-690 V, 50/60 Hz, 3~
converter
type
power
Frame
Dimensions and
weight*
WxHxD/kg
Rated
contin.
current I
L
(A)
Rated
overload
current
(A)
Rated
contin.
current I
H
(A)
50%
overload
current
(A)
Max
current
I
S
Low
overload
P(kW)
High
overload
P(kW)
Table 4-4. Power ratings and dimensions of Vacon regenerative low-harmonic drives, supply voltage 525-690V.
Note: The rated currents in given ambient temperatures are achieved only when the switching
frequency is equal to or less than the factory default (automatic thermal management).
*The dimensions indicated are for the basic regenerative low-harmonic IP21 version of the converter
cabinet. Some options increase the width, height or weight of the cabinet. Check the delivery specific
documentation for more details.
** Maximum ambient temperature +35°C
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