ABB ACS800-U7 - Requirements table

Planning the electrical installation
40
Requirements table
The following table shows how to select the motor insulation system and when an
optional drive du/dt and common mode filters and insulated N-end (non-drive end)
motor bearings are required. Ignoring the requirements or improper installation may
shorten motor life or damage the motor bearings and voids the warranty.
Motor
type
Nominal AC supply
voltage
Requirement for
Motor insulation
system
ABB du/dt and common mode filters, insulated
N-end motor bearings
P
N
< 100 kW
and
frame size <
IEC 315
100 kW < P
N
< 350 kW
or
IEC 315 <
frame size <
IEC 400
P
N
< 134 hp
and
frame size <
NEMA 500
134 hp < P
N
< 469 hp
or
NEMA 500 <
frame size <
NEMA 580
ABB motors
Random-
wound
M2_,
M3_ and
M4_
U
N
< 500 V Standard - + N
500 V < U
N
< 600 V Standard + du/dt + du/dt + N
or
Reinforced - + N
600 V < U
N
< 690 V
(cable length <
150 m)
Reinforced + du/dt + du/dt + N
600 V < U
N
< 690 V
(cable length >
150 m)
Reinforced - + N
Form-
wound
HX_ and
AM_
380 V < U
N
< 690 V Standard n.a. + N + CMF
Old*
form-
wound
HX_ and
modular
380 V < U
N
< 690 V Check with the
motor
manufacturer.
+ du/dt with voltages over 500 V + N + CMF
Random-
wound
HX_ and
AM_ **
0 V < U
N
< 500 V Enamelled wire
with fiber glass
taping
+ N + CMF
500 V < U
N
< 690 V + du/dt + N + CMF
HDP Consult the motor manufacturer.
* manufactured before 1.1.1998
** For motors manufactured before 1.1.1998, check for additional instructions with the motor
manufacturer.