Installation and user manual – MGE UPS Systems POWER-SURE 700 User Manual
Page 21
Installation and Operation
Table 2-1: 480 VAC Input and 208 VAC Output Wire Size Chart.
Unit Size
Input
Input
Minimum
Maximum
in kVA
Breaker
Wire
Ground Wire
Output
Size
Size
Size
Current
10
15 Amp
#10
#10
28
15
25 Amp
#10
#8
42
25
50 Amp
#8
#4
70
30
50 Amp
#8
#4
83
45
80 Amp
#6
#2
125
50
80 Amp
#6
#2
139
75
125 Amp
#1
#6
208
100
150 Amp
1/0
4/0
278
125
200 Amp
1/0
2 pcs 1/0
347
150
225 Amp
1/0
2 pcs 2/0
417
225
350 Amp
4/0
2 pcs 250
625
300
500 Amp
2 pcs 2/0
3 pcs 250
833
Table based on 480 VAC input and 208 VAC output.
Table 2-2: 208 VAC Input and 208 VAC Output Wire Size Chart.
Unit Size
Input
Input
Minimum
Maximum
in kVA
Breaker
Wire
Ground Wire
Output
Size
Size
Size
Current
10
40 Amp
#8
#10
28
15
60 Amp
#8
#8
42
25
110 Amp
#4
#4
70
30
110 Amp
#4
#4
83
45
175 Amp
#1
#2
125
50
175 Amp
#1
#2
139
75
300 Amp
2/0
2/0
208
100
350 Amp
4/0
4/0
278
125
450 Amp
2 pcs 1/0
2 pcs 1/0
347
150
600 Amp
2 pcs 3/0
2 pcs 3/0
417
225
800 Amp
2 pcs 250
2 pcs 250
625
300
1200 Amp
3 pcs 250
3 pcs 250
833
Table based on 208 VAC input and 208 VAC output.
NOTE:
Refer to NEC for output wire size based on output breaker size and Article 310
Section 8A.
2 — 7
Installation and User Manual
86-108814-00 B01