KFU 2-/4-
24
3.6
KFU 4- (0.25 to 1.5 kW, 400 V)
Type
KFU 4-
-01 -03 -05 -07 -09 -11
Construction Size
1
Output, motor side
Recommended motor shaft power
P
kW
0.25 0.37 0.55 0.75 1.1 1.5
Output current
I
A
1.0 1.6 1.8 2.4 3.2 3.8
3)
Long-term overload current (60 s)
I
A
2.0 3.2 2.7 3.6 4.8 5.7
Short-time overload current (1 s)
I
A
2.0 3.2 3.6 4.8 6.4 7.6
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, 12, 16
Output, brake resistor
Min. brake resistance
R
Ω
300 300 300 300 300 300
Recommended brake resistor
(U
dBC
= 770 V)
R
Ω
930 930 930 634 462 300
Input, mains side
Mains current
2)
3ph/PE
I
A
1.0 1.6 1.8 2.4 2.8
1)
3.3
1)
Mains voltage
U
V
320 ... 528
Mains frequency
f
Hz
45 ... 66
Fuses 3ph/PE
I
A
6
UL type 600 VAC RK5, 3ph/PE
I
A
6
Mechanics
Dimensions
HxWxD mm
190 x 60 x 175
Weight (approx.)
m
kg
1.2
Degree of protection
- -
IP20
(EN60529)
Terminals
A
mm
2
0.2 ... 1.5
Form of assembly
- -
vertical
Ambient conditions
Energy dissipation
(2 kHz switching frequency)
P
W
30 35 40 46 58 68
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
12 kHz
16 kHz
0.25 kW
1.0 A
1.0 A
1.0 A
0.8 A
0.7 A
0.37 kW
1.6 A
1.6 A
1.6 A
1.3 A
1.1 A
0.55 kW
1.8 A
1.8 A
1.8 A
1.5 A
1.2 A
0.75 kW
2.4 A
2.4 A
2.4 A
2.0 A
1.6 A
1.1 kW
3.2 A
1)
3.2 A
1)
3.2 A
1)
2.7 A
1)
2.2 A
1.5 kW
1)
3.8 A
3.8 A
3)
3.8 A
3)
3.2 A
3)
2.6 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
