IMPULSE•G+/VG+ Series 4 Technical Manual
November 2022
Page 32
Table 3-2: Wire Size and Circuit Protection for 460 V Class
1) NFPA 70 National Electric Code 2017. Tables 430.122(a), 310.15(b)(16), and 610.14(a), 75°C conductor, 60-minute, copper with 40°C ambient
correction factor.
2) NFPA 70 National Electric Code 2017. Table 250.122.
3) NFPA 70 National Electric Code 2017. Table 430.52 (selected based on VFD input Amps.
4) One wire per terminal at 16AWG, or two wires per terminal (same type and size) at 18AWG.
Model Number
(-G+/VG+ S4)
Maximum Circuit Protection
Recommended Wire Size (AWG)
1
Continuous
HD Input
Amps
Time Delay
Input Fuse
(A)
3
Time Delay
Input Fuse
Class
Inverse Time Molded/
Case Circuit Breaker
(A)
3
Power Circuit Wiring
Control
Wiring
4
Ground
Copper
2
(Fuse)
Ground
Copper
2
(Breaker)
4001
1.8
3.2
CC
15
14
18 to 16
14
14
4003
3.2
5.6
CC
15
14
18 to 16
14
14
4004
4.4
8
CC
15
14
18 to 16
14
14
4005
6.0
12
CC
15
14
18 to 16
14
14
4007
8.2
15
CC
25
14
18 to 16
14
10
4009
10.4
20
CC
30
14
18 to 16
12
10
4014
15.0
30
CC
40
14
18 to 16
10
10
4018
20
35
J
50
12
18 to 16
10
10
4024
29
60
J
80
12 to 10
18 to 16
10
8
4031
39
70
J
100
10 to 8
18 to 16
8
8
4039
44
80
J
110
8
18 to 16
8
6
4045
43
80
J
110
8 to 6
18 to 16
8
6
4060
58
110
J
150
6 to 4
18 to 16
6
6
4075
71
125
J
200
4 to 2
18 to 16
6
6
4091
86
175
J
225
4 to 2
18 to 16
6
4
4112
105
200
J
300
2 to 1/0
18 to 16
6
4
4150
142
250
J
400
1/0 to 2/0
18 to 16
4
3
4180
170
300
J
450
2/0 to 4/0
18 to 16
4
2
4216
207
400
J
600
3/0 to 250
18 to 16
3
1
4260
248
450
J
700
(2)1/0
4/0 to 300
18 to 16
2
1/0
4304
300
600
J
800
(2)2/0
250
18 to 16
1
1/0
4370
346
650
J
1000
(2)2/0 to (2)4/0
18 to 16
1/0
2/0
4450
410
750
L
1200
(2)250 to (2)300
350 to 400
18 to 16
1/0
3/0
4605
584
1100
L
1600
(2)250 to (2)500
18 to 16
3/0
4/0
4810
830
1500
L
2500
(2)350
(3)350 to (3)400
18 to 16
4/0
350
41090
1031
1900
L
3000
(2)450 to (2)500
(3)500
18 to 16
250
400
