Circuit Breaker And Fused Disconnect Switch Sizes - Lochinvar NSF SSB-i & s--01 Installation And Service Manual

CIRCUIT BREAKER AND FUSED DISCONNECT SWITCH SIZES

kW VOLTS PH
6 208 1
208 3
240 1
240 3
480 3
9 208 1
208 3
240 1
240 3
480 3
12 208 1
208 3
240 1
240 3
480 3
15 208 1
208 3
240 1
240 3
480 3
18 208 1
208 3
240 1
240 3
480 3
24 208 1
208 3
240 1
240 3
480 3
30 208 1
208 3
240 1
240 3
480 3
36 208 1
208 3
240 1
240 3
480 3
45 208 3
240 1
240 3
480 3
54 208 3
240 3
480 3
58 208 3
240 3
480 3
Wire size is based on THHN wire for branch circuit protection at .91 derate factor. Circuit breakers are to be mounted remotely and wired by the contractor. Sizes are
based on the NEC table 310-16. Conduit size is based on conductors plus ground wire sizing as per NEC table 250-122.
L1 L2 L3
29 29 —
14 25 14
25 25 —
13 22 13
6 11 6
43 43 —
22 38 22
38 38 —
19 33 19
9 16 9
58 58 —
33 33 33
50 50 —
29 29 29
14 14 14
72 72 —
42 42 42
63 63 —
36 36 36
18 18 18
87 87 —
48 48 48
75 75 —
43 43 43
22 22 22
115 115 —
67 67 67
100 100 —
58 58 58
30 30 30
144 144 —
83 83 83
125 125 —
72 72 72
36 36 36
173 173 —
100 100 100
150 150 —
87 87 87
43 43 43
125 125 125
188 188 —
108 108 108
54 54 54
150 150 150
130 130 130
65 65 65
162 162 162
141 141 141
71 71 71
Breaker or Fuse Size Copper Wire Size
40
40
40
30
15
60
50
50
50
20
90
50
70
40
20
90
60
90
50
30
125
60
100
60
30
150
90
125
90
40
200
125
175
100
50
225
125
200
125
60
175
250
150
70
200
175
90
225
200
90
7
Conduit Size
8
8
8
10
14
6
8
8
8
12
3
8
4
8
12
3
6
3
8
10
1 1-1/4"
6
3
6
10
1/0 1-1/4"
3 1-1/4"
1 1-1/4"
3 1-1/4"
8
3/0 1-1/2"
3 1-1/2"
2/0 1-1/2"
3 1-1/4"
8
4/0
1 1-1/2"
3/0 1-1/2"
1 1-1/2"
6
2/0
250 MCM
1/0 1-1/2"
4
3/0 1-1/2"
2/0
3 1-1/4"
4/0
3/0 1-1/2"
3 1-1/4"
1/2"
3/4"
1/2"
1/2"
1/2"
3/4"
3/4"
1/2"
3/4"
1/2"
1"
3/4"
1"
3/4"
1/2"
1"
3/4"
1"
3/4"
1/2"
3/4"
1"
3/4"
1/2"
3/4"
3/4"
2"
3/4"
2"
2"
1"
2"
2"