KFU 2-/4-
29
3.11
KFU 4- (75.0 to 132.0 kW, 400 V)
Type
KFU 4-
-43 -45 -47 -49
Construction Size
7
Output, motor side
Recommended motor shaft power
P
kW
75 90 110 132
Output current
I
A
150 180 210 250
Long-term overload current (60 s)
I
A
225 270 315 332
Short-time overload current (1 s)
I
A
270 325 375 375
Output voltage
U
V
Maximum input voltage, three-phase
Protection
-
-
Short circuit / earth fault proof
Rotary field frequency
f
Hz
0 ... 1000, depending on switching frequency
Switching frequency
f
kHz
2, 4, 8
Output, brake resistor
5)
Min. brake resistance
R
Ω
4.5 3.0
Recommended brake resistor
(U
dBC
= 770 V)
R
Ω
6.1 5.1 4.1 3.8
Input, mains side
Mains current
2)
3ph/PE
I
A
143
1)
172
1)
208
1)
249
1)
Mains voltage
U
V
320 ... 528
Mains frequency
f
Hz
45 ... 66
Fuses 3ph/PE
I
A
160 200 250 315
UL type 600 VAC RK5, 3ph/PE
I
A
175 200 250 300
Mechanics
Dimensions
HxWxD mm
510 x 412 x 351
Weight (approx.)
m
kg
45
Degree of protection
- -
IP20
(EN60529)
Terminals
A
mm
2
up to 2 x 95
Form of assembly
- -
vertical
Ambient conditions
Energy dissipation
(2 kHz switching frequency)
P
W
1600 1900 2300 2800
Coolant temperature
T
n
°C
0 ... 40 (3K3 DIN IEC 721-3-3)
Storage temperature
T
L
°C
-25 ... 55
Transport temperature
T
T
°C
-25 ... 70
Rel. air humidity
-
%
15 ... 85, not condensing
If required by the customer, the switching frequency may be increased if the output current is reduced at the
same time. Comply with the applicable standards and regulations for this operating point.
Output current
4)
Switching
frequency
Frequency inverter nominal power
2 kHz
4 kHz
8 kHz
75 kW
150 A
150 A
150 A
90 kW
180 A
180 A
180 A
110 kW
210 A
210 A
210 A
3)
132 kW
250 A
250 A
250 A
3)
1)
Three-phase connection requires a commutating choke.
2)
Mains current with relative mains impedance
≥
1% (see chapter„Electrical installation“)
3)
Reduction of switching frequency in thermal limit range
4)
Maximum current in continuous operation
5)
Optional the frequency inverter of this size is purchasable without brake transistor.
