Installation Manual

Appendix B—Installation Guidelines
46 DG1 Series VFD MN040002EN—March 2014 www.eaton.com
Appendix B—Installation Guidelines
Cable and Fuse Sizing
See Page 30 for cable stripping guidelines.
Table 29. North America Cable and Fuse Sizes—208 Vac to 240 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
208V Input
Current
(CT/I
H
)
208V Input
Current
(VT/I
L
)
NEC
Motor Amp
Rating
at 230V
NEC
Motor Amp
Rating
at 208V
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 3D7 3.2 4.4 4.2 4.6 3.7 4.8 10 14 14 24–10 18–10
4D8 4.4 6.1 6.0 6.6 4.8 6.6 10 14 14 24–10 18–10
6D6 6.1 7.2 6.8 7.5 6.6 7.8 10 14 14 24–10 18–10
7D8 7.2 10.2 9.6 10.6 7.8 11 15 14 14 24–10 18–10
011 10.2 11.6 — — 11 12.5 15 12 14 24–10 18–10
FR2 012 10.2 16.3 15.2 16.7 12.5 17.5 20 10 12 20–6 12–6
017 16.2 23.2 22 24.2 17.5 25 30 8 10 20–6 12–6
025 23.1 29 28 30.8 25 31 35 8 10 20–6 12–6
FR3 031 28.7 44.2 42 46.2 31 48 60 6 10 6–2 14–4
048 44.4 56 54 59.4 48 61 80 4 8 6–2 14–4
FR4 061 56.4 64.6 68 74.8 61 75 100 3 8 6–1/0 10–1/0
075 69.4 78 80 88 75 88 110 2 6 6–1/0 10–1/0
088 81.4 94.3 104 114 88 114 125 1/0 6 6–1/0 10–1/0
FR5 114 105.5 129 130 143 114 143 175 3/0 6 1/0–350
kcmil
8–250
kcmil
143 132.3 157 154 169 143 170 200 4/0 6 1/0–350
kcmil
8–250
kcmil
170 157.3 189 192 211 170 211 250 300 4 1/0–350
kcmil
8–250
kcmil
FR6 211 195.2
4
248 261 211 261
44
3
44
261 241.4
4
312 312 261 312
44
3
44