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PowerXL FR7 and FR8 Series VFD
North American cable and fuse sizes—525 Vac to 600 Vac ratings
460 V input
Frame
Amp
current
size
suffix
(CT/I
)
H
FR7
0261
223
0325
269
0385
327
0416
382
FR8
0460
433
0520
472
0590
527
0650
591
0750
646
0820
739
1
Line and motor cable size is selected according to UL 508C Table 40.3 for copper conductor rated 75 °C. Use only with copper wire rated 75 °C here.
Size requirements for other different wire types are defined in the National Electrical Code, ANSI/NFPA 70.
2
Earthing conductor size is determined by the maximum overcurrent device rating used ahead of the drive according to UL 508C Table 6.4.
3
If power cubes or bypass are used, a UL listed Class J, T, or equivalent fuse is recommended.
International cable and fuse sizes—525 Vac to 600 Vac ratings
Input
Frame
Amp
current
size
suffix
(CT/IH)
FR7
0261
223
0325
269
0385
327
0416
382
FR8
0460
433
0520
472
0590
527
0650
591
0750
646
0820
739
1
Line and motor cable size is selected according to IEC 60364–5–52:2009 Table B.52.4 for copper conductor with PVC insulation with a wiring condition of ambient
temperature 30 °C in air and an installation method of "B2" (cables in conduit and cable trunking systems). For other wiring conditions, please refer to the standard
of IEC 60364–5–52:2009 for suitable cable sizes.
2
Earthing conductor size is determined by the cross–sectional area of phase conductors according to IEC/EN61800–5–1:2007 Table 5. So if phase conductor size is
changed, earthing conductor size should also be changed accordingly.
3
If power cubes or bypass are used, a Class gG/gL fuse is recommended.
460 V input
Current
Current
current
(CT/I
)
(VT/I
)
H
L
(VT/I
)
at 50 °C
at 40 °C
L
272
205
261
330
261
325
385
325
385
415
385
416
477
416
460
532
460
520
597
520
590
653
590
650
747
650
750
813
650
820
Input
Current
Current
current
(CT/IH)
(VT/IL)
(VT/IL)
at 50 °C
at 40 °C
272
208
261
330
261
325
386
325
385
415
385
416
477
416
460
532
460
520
597
520
590
653
590
650
747
650
750
813
750
820
NEC wire size (AWG)
Recommended
fuse rating
Line and motor
500
2x250 kcmil
600
2x350 kcmil
700
3x4/0
800
3x250 kcmil
2x400
4x4/0
2x500
4x300
2x600
4x350
2x600
6x4/0
2x600
6x250
2x700
6x300
Recommended
fuse rating
Line and motor
315
3x185+95
2x(3x95+29)
355
3x240+120
2x(3x120+41)
400
2x(3x120+70)
2x(3x185+57)
450
2x(3x120+70)
2x(3x185+57)
2x315
2x(3x150+70)
2x(3x240+72)
2x315
2x(3x185+95)
4x(3x95+29)
2x315
4x(3x70+35)
4x(3x120+41)
2x355
4x(3x95+50)
4x(3x150+41)
2x400
4x(3x120+70)
4x(3x150+41)
2x425
4x(3x120+70)
4x(3x185+57)
Instruction Leaflet IL040047EN
Effective January 2022
Terminal connection size (AWG)
Line and motor
bolt size
Ground bolt size
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
1 AWG–350 kcmil
Line and motor
bolt size
Ground bolt size
M12
M8
M12
M8
M12
M8
M12
M8
M12
M8
M12
M8
M12
M8
M12
M8
M12
M8
M12
M8
EATON
www.eaton.com
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