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LG-10(C) thru LG-30(C) (Portable) - User Manual
4.3) AMPERAGE CALCULATIONS
The INPUT VOLTAGE, PHASE, TOTAL POWER RATING, and HEATER
VOLTAGE RATING are used to calculate the amperage.
NOTE: 380-425V heaters are not usually rated for 380-425V. They are usually 208-240V heaters
that have been re-stamped 380-425V and wired in series.
208-240V & 440-600V
DEFINITIONS:
I = Amperage
P
= Total Power Rating
T
THREE PHASE AMP DRAW CALCULATIONS (AMPS)
Input Voltage
LG-10
LG-15
LG-20
LG-25
LG-30
SINGLE PHASE AMP DRAW CALCULATIONS (AMPS)
Input Voltage
LG-10
LG-15
LG-20
LG-25
LG-30
FORMULAS TO CALCULATE AMPERAGE
THREE PHASE
380-425V
(using 208-240V heaters)
208
220
230
240
27.8
29.4
23.1
24.1
41.6
36
37.7
39.3
54.1
46.8
48.9
51.1
65.6
69.3
57.6
60.1
81.2
85.9
67.4
70.4
208
220
230
240
48.1
50.9
39.9
41.7
72.1
62.4
65.2
68.1
93.8
81.1
84.8
88.5
114
120
99.8
104
141
149
117
122
V
= Input Voltage
I
V
= Heater Voltage Rating
H
380
400
415
425
16.9
13.4
13.9
14.2
25.4
21.8
22.6
23.2
33
28.4
29.4
30.1
39.9
42
34.7
35.5
49.4
39.1
40.6
41.5
380
400
415
425
Not possible with odd
number of heaters
20 of 30
Electro-Steam Generator Corp.
SINGLE PHASE
208-240V &
440-600V
(using 208-240V)
Not possible with
440
460
480
11
11.5
12
16.5
17.3
18
21.5
22.5
23.5
27.6
28.8
30.1
32.3
33.7
35.2
440
460
480
19.1
20
20.8
28.6
29.9
31.3
37.2
38.9
40.6
47.7
49.9
52.1
55.9
58.4
60.9
380-425V
odd number of
heaters
550
575
600
8.82
9.22
9.62
13.2
13.8
14.4
17.2
18
18.8
22.1
23.1
24.1
25.8
27
28.1
550
575
600
15.3
16
16.7
22.9
24
25
29.8
31.1
32.5
38.2
39.9
41.7
44.7
46.7
48.8
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