Requirements for ABB motors,
P
n
< 100 kW (134 hp)
See also Abbreviations (page 102).
Requirement forNominal AC line
voltage
Motor type
ABB d
u
/d
t
and common mode filters, in-
sulated N-end motor bearings
Motor insu-
lation sys-
tem
P
n
< 100 kW and frame size < IEC 315
P
n
< 134 hp and frame size < NEMA 500
-Standard
U
n
≤ 500 VRandom-wound
M2_, M3_ and
M4_
+ d
u
/d
t
Standard500 V <
U
n
≤
600 V
-Reinforced
+ d
u
/d
t
Reinforced600 V <
U
n
≤
690 V (cable
length ≤ 150 m)
-Reinforced600 V <
U
n
≤
690 V (cable
length > 150 m)
N/AStandard380 V <
U
n
≤
690 V
Form-wound HX_
and AM_
+ N + d
u
/d
t
with voltages over 500 V +
CMF
Check with
the motor
manufac-
turer.
380 V <
U
n
≤
690 V
Old
1)
form-
wound HX_ and
modular
+ N + CMFEnamelled
wire with
fiber glass
taping
0 V <
U
n
≤ 500 V
Random-wound
HX_ and AM_
2)
+ N + d
u
/d
t
+ CMF500 V <
U
n
≤
690 V
Consult the motor manufacturer.HDP
1)
manufactured before 1.1.1998
2)
For motors manufactured before 1.1.1998, check for additional instructions with the motor manufacturer.
98 Guidelines for planning the electrical installation