Installation Manual

Appendix B—Installation Guidelines
48 DG1 Series VFD MN040002EN—March 2014 www.eaton.com
Table 31. North America Cable and Fuse Sizes—440 Vac to 500 Vac Ratings
Notes
1
Line and motor cable size is selected according to UL508C 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 UL508C Table 6.4.
3
If power cubes or bypass are used, a UL recognized Class T fuse is recommended.
4
Available in 2015.
Frame
Size
Amp
Suffix
400V Input
Current
(CT/I
H
)
400V Input
Current
(VT/I
L
)
NEC Motor
Amp Rating
at 460V
Current
(CT/I
H
)
at 50°C
Current
(VT/I
L
)
at 40°C
Fuse
Rating
(Class T)
NEC
Wire Size (AWG)
Terminal Connection
Size (AWG)
Line and
Motor Ground
Line and
Motor Ground
FR1 2D2 2.0 3.1 3.0 2.1 3.0 10 14 14 30–10 18–10
3D3 3.1 4 3.4 3.0 3.4 10 14 14 30–10 18–10
4D3 4.0 5.2 4.8 3.4 4.8 10 14 14 30–10 18–10
5D6 5.2 7.1 7.6 4.8 7.6 10 14 14 30–10 18–10
7D6 7.1 8.4 — 7.6 9 15 14 14 30–10 18–10
9D0 8.4 11.2 11 9 12 15 14 14 30-10 18–10
FR2 012 11.2 15 14 11 14 20 12 12 20–6 12–6
016 14.9 21.5 21 14 21 30 10 10 20–6 12–6
023 21.4 29 27 21 27 35 8 10 20–6 12–6
FR3 031 28.8 35.2 34 27 34 50 8 10 6–2 14–4
038 35.3 42.6 40 34 40 60 6 10 6–2 14–4
046 42.8 55.7 52 40 52 80 4 8 6–2 14–4
FR4 061 56.7 65.7 65 52 65 100 4 8 6–1/0 10–1/0
072 66.9 79.4 77 65 77 110 3 6 6–1/0 10–1/0
087 80.9 97 96 77 96 125 1 6 6–1/0 10–1/0
FR5 105 97.6 129 124 96 124 175 3/0 6 1/0–350 kcmil 8–250 kcmil
140 130.1 157 156 124 156 200 3/0 6 1/0–350 kcmil 8–250 kcmil
170 158.0 189 180 156 180 250 250 kcmil 4 1/0–350 kcmil 8–250 kcmil
FR6 205 190.6
4
240 180 240 350
4
3
44
261
44
302 240 302 400
4
3
44