Eaton Power-Sure 700, Instruction Manual

Page: 10 / 44

6
Input wire size, grounding, and output wiring
Instruction manual IM1002004E September 2015 www.powerquality.eaton.com
Table 3. Wire size chart
Unit size
in kVA
Input breaker
size (amperes)
Input
wire size
Minimum ground
wire size
208 Vac input
10 40 #8 #10
15 60 #6 #10
25 110 #2 #6
30 110 #2 #6
45 175 2/0 #6
50 175 3/0 #6
75 300 #350 #4
100 400 3/0
a
#3
125 500 250 kcmil
a
#2
150 600 350 kcmil
a
#1
225 800 500 kcmil
a
1/0
300 1200 500 kcmil
b
3/0
500 2000 500 kcmil
d
250 kcmil
240 Vac input
10 30 #10 #10
15 50 #8 #10
25 100 #3 #8
30 100 #3 #8
45 150 1/0 #6
50 150 2/0 #6
75 250 #250 #4
100 350 500 #3
125 400 3/0
a
#3
150 500 250 kcmil
a
#2
225 800 500 kcmil
a
1/0
300 1000 500 kcmil
b
2/0
500 1600 500 kcmil
c
4/0
a
2 pcs.
b
3 pcs.
c
4 pcs.
d
5 pcs.
otes: N Refer to NEC for output wire size based on
output breaker size as mentioned in Step E
on the previous page.
Unit size
in kVA
Input breaker
size (amperes)
Input
wire size
Minimum ground
wire size
480 Vac input
10 15 #10 #14
15 25 #10 #10
25 50 #6 #10
30 50 #6 #10
45 80 #4 #8
50 80 #4 #8
75 125 #1 #6
100 175 2/0 #6
125 200 3/0 #6
150 250 250 kcmil #4
225 350 500 kcmil #3
300 500 250 kcmil
a
#2
500 800 500 kcmil
a
1/0
600 Vac input
10 15 #10 #14
15 20 #10 #12
25 40 #8 #10
30 40 #8 #10
45 60 #6 #10
50 70 #4 #8
75 100 #3 #8
100 150 1/0 #6
125 175 2/0 #6
150 200 3/0 #6
225 300 350 kcmil #4
300 400 500 kcmil #3
500 700 400 kcmil
a
1/0