Hatco Imperial S Series Installation And Operating Manual page 7

English
Circuit Breaker and Fused Disconnect Switch Sizes — 13.5 to 30 kW
kW volts Phase
13.5 208 1
208 1
240 1
240 1
480 1
600 1
15 208 1
208 3
240 1
240 3
380 3
480 3
600 3
17.25 208 3
18 208 1
240 1
240 3
380 3
480 3
600 3
24 208 1
208 3
240 1
240 3
380 3
480 3
600 3
27 208 1
208 3
240 1
240 3
380 3
480 3
600 3
30 208 1
208 3
240 1
240 3
380 3
480 3
600 3
Wire size is based on THHN wire for branch circuit protection at .91 derate factor. Circuit breakers and fused disconnects are to
be mounted remote and wired by contractor. Sizes are based on the 2002 NEC table 310-16. Conduit size based on conductors
plus ground wire sizing per Table C1 from appendix C.
Only 6, 7 and 9 kW models can be field converted to single or three phase (open delta on 3 phase). Check wiring diagram supplied
with the unit when converting the phase of the unit. Larger branch circuit required than for balanced 3 phase of equal kW. Balanced
3 phase available, consult factory.
Form No. EBOOSTERm-0613
Amp Draw
L1 L2 L3
65 65 --
38 38 38
56.3 56.3 --
33 33 33
16.3 16.3 16.3
13 13 13
72 72 --
41.7 41.7 41.7
62.5 62.5 --
36.1 36.1 36.1
23.0 23.0 23.0
18.1 18.1 18.1
14.5 14.5 14.5
47.9 47.9 47.9
86.5 86.5 --
75 75 --
43.4 43.4 43.4
27.3 27.3 27.3
21.7 21.7 21.7
17 17 17
115.4 115.4 --
66.7 66.7 66.7
100 100 --
57.8 57.8 57.8
38.0 38.0 38.0
29.9 29.9 29.9
23 23 23
129.8 129.8 --
75 75 75
112.5 112.5 --
65 65 65
38.1 38.1 38.1
32.5 32.5 32.5
26 26 26
144 144 --
83.3 83.3 83.3
125 125 --
72.3 72.3 72.3
45.7 45.7 45.7
36 36 36
28.9 28.9 28.9
Breaker or Fuse
Size
90
50
90
50
30
20
90
60
90
50
30
30
20
60
125
100
60
40
30
30
150
90
125
90
50
40
30
175
100
150
90
50
50
40
200
125
175
100
60
50
40
7
SPECIFICATIONS
Copper Wire
Size Conduit Size
3 1" (25 mm)
8 1/2" (13 mm)
3 1" (25 mm)
8 1/2" (13 mm)
10 1/2" (13 mm)
12 1/2" (13 mm)
3 1" (25 mm)
6 3/4" (19 mm)
3 1" (25 mm)
8 1/2" (13 mm)
10 1/2" (13 mm)
10 1/2" (13 mm)
12 1/2" (13 mm)
6 3/4" (19 mm)
1 1-1/4" (32 mm)
3 1" (25 mm)
6 3/4" (19 mm)
8 1/2" (13 mm)
10 1/2" (13 mm)
10 1/2" (13 mm)
1/0 1-1/4" (32 mm)
3 1" (25 mm)
1 1-1/4" (32 mm)
3 1-1/4" (32 mm)
8 1/2" (13 mm)
8 1/2" (13 mm)
10 1/2" (13 mm)
2/0 1-1/4" (32 mm)
3 1" (25 mm)
1/0 1-1/4" (32 mm)
3 1" (25 mm)
8 1/2" (13 mm)
8 1/2" (13 mm)
8 1/2" (13 mm)
3/0 1-1/2" (38 mm)
1 1-1/4" (32 mm)
2/0 1-1/2" (38 mm)
3 1" (25 mm)
6 3/4" (19 mm)
8 1/2" (13 mm)
8 1/2" (13 mm)