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Instruction Leaflet IL040029EN
Effective December 2017
Cable and fuse guidelines
North America cable and fuse sizes—208 Vac to 240 Vac ratings
208 V
input
Amp
current
Frame size
suffix
(VT/I
FR0
4D8
5.6
6D6
7.6
7D8
9
FR1
4D8
4.4
6D6
6.1
7D8
7.2
011
10.2
012
11.6
FR2
017
16.3
025
23.2
031
29
FR3
048
44.2
061
56
FR4
075
64.6
088
78
114
94.3
FR5
143
129
170
157
211
189
FR6
261
242.8
312
290.3
Notes
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
Earthing conductor size is determined by the maximum overcurrent device rating used ahead of the drive according to UL 508C Table 6.4.
If power cubes or bypass are used, a UL listed Class RK5, J, T or equivalent fuse is recommended.
FR0 is not available till June 2018.
EATON
14
www.eaton.com
NEC
NEC
motor amp
motor amp
rating
rating
)
at 230 V
at 208 V
L
4.2
4.6
6
6.6
6.8
7.5
4.2
4.6
6
6.6
6.8
7.5
9.6
10.6
—
—
15.2
16.7
22
24.2
28
30.8
42
46.2
54
59.4
68
74.8
80
88
104
114
130
143
154
169
192
211
248
273
312
343
NEC
wire size (AWG)
Current
Recommended
(VT/I
)
fuse
Line and
L
at 40 °C
rating
motor
4.8
10
14
6.6
10
14
7.8
15
14
4.8
10
14
6.6
10
14
7.8
10
14
11
15
14
12.5
15
12
17.5
20
10
25
30
8
31
35
8
48
60
6
61
80
4
75
100
3
88
110
2
114
125
1/0
143
175
3/0
170
200
4/0
211
250
300
261
400
2*2/0
312
400
2*4/0
®
®
, ANSI/NFPA
70.
PowerXL DH1 Series VFD
®
Terminal connection size (AWG)
Line and
Ground
motor
14
26–10
14
26–10
14
26–10
14
24–10
14
24–10
14
24–10
14
24–10
12
24–10
10
20–6
10
20–6
10
20–6
6
6–2
6
6–2
4
6–1/0
4
6–1/0
3
6–1/0
3
1/0–350 kcmil
3
1/0–350 kcmil
3
1/0–350 kcmil
3
2*(1/0–300 kcmil)
3
2*(1/0–300 kcmil)
Ground
18–10
18–10
18–10
18–10
18–10
18–10
18–10
18–10
12–6
12–6
12–6
14–4
14–4
10–1/0
10–1/0
10–1/0
8–250 kcmil
8–250 kcmil
8–250 kcmil
3–300 kcmil
3–300 kcmil
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