Eaton PowerXL DG1 - Appendix B-Installation Guidelines; Cable and Fuse Sizing

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Appendix B—Installation guidelines
POWERXL SERIES VFD MN040002EN—February 2018 www.eaton.com
Appendix B—Installation guidelines
Cable and fuse sizing
See Page 38 for cable stripping guidelines.
Table 43. North America cable and fuse sizes—208 Vac to 240 Vac ratings
Frame
size
CT
Amp
Suffix
VT
Amp
Suffix
208 V
input
current
(CT/IH)
208 V
input
current
(VT/IL)
NEC
motor
Amp
rating
at 230 V
NEC
motor
Amp
rating
at 208 V
Current
(CT/IH)
at 50 °C
Current
(VT/IL)
at 40 °C
Recommended
fuse rating
NEC
wire size (AWG)
Terminal connection
size(AWG)
Line
and
motor Ground
Line
and
motor Ground
FR0 3D7 4D8 4.3 5.6 4.2 4.6 3.7 4.8 10 14 14 26–10 18–10
4D8 6D6 5.6 7.6 6 6.6 4.8 6.6 10 14 14 26–10 18–10
6D6 7D8 7.6 9 6.8 7.5 6.6 7.8 15 14 14 26–10 18–10
FR1 3D7 4D8 3.2 4.4 4.2 4.6 3.7 4.8 10 14 14 24–10 18–10
4D8 6D6 4.4 6.1 6.0 6.6 4.8 6.6 10 14 14 24–10 18–10
6D6 7D8 6.1 7.2 6.8 7.5 6.6 7.8 10 14 14 24–10 18–10
7D8 011 7.2 10.2 9.6 10.6 7.8 11 15 14 14 24–10 18–10
011 012 10.2 11.6 — — 11 12.5 15 12 12 24–10 18–10
FR2 012 017 10.2 16.3 15.2 16.7 12.5 17.5 20 10 10 20–6 12–6
017 025 16.2 23.2 22 24.2 17.5 25 30 8 10 20–6 12–6
025 031 23.1 29 28 30.8 25 31 35 8 10 20–6 12–6
FR3 031 048 28.7 44.2 42 46.2 31 48 60 6 6 6–2 14–4
048 061 44.4 56 54 59.4 48 61 80 4 6 6–2 14–4
FR4 061 075 56.4 64.6 68 74.8 61 75 100 3 4 6–1/0 10–1/0
075 088 69.4 78 80 88 75 88 110 2 4 6–1/0 10–1/0
088 114 81.4 94.3 104 114 88 114 125 1/0 3 6–1/0 10–1/0
FR5 114 143 105.5 129 130 143 114 143 175 3/0 3 1/0–350 kcmil 8–250 kcmil
143 170 132.3 157 154 169 143 170 200 4/0 3 1/0–350 kcmil 8–250 kcmil
170 211 157.3 189 192 211 170 211 250 300 3 1/0–350 kcmil 8–250 kcmil
FR6 211 261 196.3 242.8 248 273 211 261 400 2*2/0 3 2*(1/0–300 kcmil) 3–300 kcmil
248 312 230.7 290.3 312 343 248 312 400 2*4/0 3 2*(1/0–300 kcmil) 3–300 kcmil
otes: N  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
 Earthing conductor size is determined by the maximum overcurrent device rating used ahead of the drive
according to UL508C Table 6.4
 If power cubes or bypass are used, a UL listed Class RK5, J, T, or equivalent fuse is recommended