BeiJer BFI-H3 - Fuses, Cable Dimensions and Power Loses

Beijer Electronics Frequency Inverter BFI-H3 KI00363B 2019-09
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4.4 Fuses, cable dimensions and power loses
380-480V ±10% - 3 Phase Input – 3 Phase Output
Output
Power
[kW]
BFI-H3
model
Nominal Input
Current
Fuse or
MCB
(type B)
Supply
Cable
Size, A1
40°C
Supply
Cable
Size,
E 30°C
Nominal
Output
Current
Motor
Cable
Size,
E 30°C
Max
Motor
Cable
Length
Power
losses
Amps Amps mm
2
mm
2
Amps mm
2
m W
0.75 0022
2,0 6 1.5 1.5 2.2 1.5 100 15
1.5 0041
3,7 6 1.5 1.5 4.1 1.5 100 30
2.2 0058
5,2 10 1.5 1.5 5.8 1.5 100 44
4 0095
8,6 10 1.5 1,5 9.5 1.5
100
80
5.5 0140
12,4 16 2,5 2,5 14 1.5 100 110
7.5 0180
14 25 4 2,5 18 2,5 100 150
11 0240
21,6 25 4 2,5 24 4 100 220
15 0300
27 32 6 4 30 6 100 300
18,5 0390
35,1 50 16 6 39 10 100 370
22 0460
41,4 50 16 6 46 16 100 440
30 0610
48,2 80 35 16 61 16
100
600
37 0720
58 80 35 16 72 16 100 720
45 0900
76 100 70 25 90 35 100 900
55 1100 113 125 70 35 110 35 100 1650
75 1500 153 160 120 50 150 50 100 2250
90 1800 184 200 150 95 180 95 100 2700
110 2020 206 250 185 150 202 150 100 3300
132 2400 245 315 2x150 2x70 240 2*70 100 3900
160 3020 308 400 2x185 2x95 302 2x95 100 4800
200 3700 393 (4% choke) 500 370 100 6000
250 4500 479 (4% choke) 500 450 100 7500
NOTE
Maximum motor cable length stated applies to using a screened motor cable. When using an unscreened cable, maximum
cable length is increased by 50%. Using an output choke, the maximum cable length limited can be increased by 100%
The PWM output switching from any inverter when used with a long motor cable length can cause an increase in the
voltage at the motor terminals, depending on the motor cable length and inductance. The rise time and peak voltage can
affect the service life of the motor. Beijer recommend using an output choke for motor cable lengths of 50m or more to
ensure good motor service life.
All recommended sizes of cable sizes and fuses are recommendations. National laws and
recommendations are to be considered.
Recommended choice of cable sizes and fuses follows DIN VDE 0100 paragraph 430
Appendix, motor cable is copper, way of wiring A1 and E is following SS 424 24 24 edition.
A1 means cable/conductors in some kind of duct in a maximum temperature of 40°C. E
means cable/conductors mounted on a ladder. Calculated at 30°C with 9 or several cables
(correction factor 0,78).