48 Planning the electrical installation
Requirements table
The following table shows how to select the motor insulation system and when an
u
optional drive d
/d
motor bearings are required. Ignoring the requirements or improper installation may
shorten motor life or damage the motor bearings and voids the warranty.
Motor
Nominal mains
type
voltage (AC line
voltage)
U
A
Random-
< 500 V
N
wound
B
U
500 V <
M2_, M3_
B
600 V
and M4_
600 V <
U
690 V
(cable length <
150 m)
U
600 V <
690 V
(cable length >
150 m)
U
Form-
380 V <
wound
690 V
HX_ and
AM_
U
Old* form-
380 V <
wound
690 V
HX_ and
modular
U
Random-
0 V <
N
wound
U
500 V <
HX_ and
690 V
AM_ **
HDP
Consult the motor manufacturer.
t
and common mode filters and insulated N-end (non-drive end)
Motor insulation
system
Standard
<
Standard
N
or
Reinforced
<
Reinforced
N
<
Reinforced
N
<
Standard
N
<
Check with the
N
motor
manufacturer.
< 500 V
Enameled wire
with fiberglass
<
N
taping
Requirement for
u
t
ABB d
/d
filter, insulated N-end bearing and ABB
common mode filter
P
< 100 kW
100 kW <
N
350 kW or
and
frame size >
frame size <
IEC 315
IEC 315
P
< 134 hp
134 hp <
N
and
frame size <
NEMA 500
frame size >
NEMA 500
-
+ N
u
t
u
+ d
/d
+ d
/d
-
+ N
+ d
u
/d
t
+ d
u
/d
-
+ N
n.a.
+ N + CMF
u
t
+ d
/d
with voltages over 500 V + N + CMF
+ N + CMF
u
t
+ d
/d
+ N + CMF
P
P
<
> 350 kW
N
N
or
frame size >
IEC 400
P
<
P
> 469 hp
N
N
469 hp
or
or
frame size >
NEMA 580
+ N + CMF
t
u
t
+ N
+ d
/d
+ N + CMF
+ N + CMF
t
+ N
+ d
u
/d
t
+ N + CMF
+ N + CMF
P
< 500 kW: + N +
N
CMF
P
> 500 kW: + N +
N
u
CMF + d
/d
t