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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
4
4
261
4
4
302
240
302
400
4
3
4
4
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