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Motor Type
Nominal Mains
N
Random-
U
< 420 V
N
O
wound and
N
form-wound
420 V < U
-
A
B
B
500 V < U
600 V < U
Form-wound
600 V < U
* manufactured before 1992
ACS/ACC 6x7 (75 to 3000 kW) Frequency Converters
Voltage
Motor
Insulation
System
Standard:
Û
= 1300 V
LL
< 500 V
Standard:
N
Û
= 1300 V
LL
or
Reinforced:
Û
= 1600 V,
LL
0.2
microsecond
rise time
< 600 V
Reinforced:
N
Û
= 1600 V
LL
or
Reinforced:
Û
= 1800 V
LL
< 690 V
Reinforced:
N
Û
= 1800 V
LL
< 690 V
Reinforced:
N
Û
= 2000 V,
LL
0.3
microsecond
rise time
Note 2: Explosion-safe (EX) Motors
The motor manufacturer should be consulted regarding the construction of the motor
insulation and additional requirements for explosion-safe (EX) motors.
Note 3: High-output Motors and IP 23 Motors
For motors with higher rated output than what is stated for the particular frame size in
IEC 50347 (2001) and for IP 23 motors, the requirements of range "100 kW < P
350 kW" apply to motors with P
apply to motors with P
Requirement for
ACS 600 du/dt Filter, Insulated N-end bearing and ACS 600 Common
Mode Filter
P
< 100 kW
100 kW < P
N
and
Frame Size < IEC 315
-
+ N or CMF
+ du/dt
+ du/dt + N
or
+ du/dt + CMF
-
+ N or CMF
+ du/dt
+ du/dt + N
or
+ du/dt + CMF
-
+ N or CMF
+ du/dt
+ du/dt + N
n.a.
+ N + CMF
< 100 kW. The requirements of range "P
N
within the range of "100 kW < P
N
Updates in Safety
< 350 kW
N
or
Frame Size > IEC 315
Frame Size > IEC 400
+ N + CMF
+ du/dt + N + CMF
+ N + CMF
+ du/dt + N + LCMF
+ N + CMF
+ du/dt + N + LCMF
+ N + CMF
< 350 kW".
N
P
> 350 kW
N
or
<
N
> 350 kW"
N
Notice-3
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