14
Amperage Chart
kW 208V
240V 277V
380V
415V 480V 600V
Input 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 3Ø 1Ø 3Ø 3Ø
3 15 - 13 - 11 - - 7 -
-
6 29 17 25 14 22 9
8 12 8
6
9 43 25 38 22 32 14 13 19 13 9
12 58 33 50 29 43 19 17 25 17 12
13.5 65 38 56 32 49 21 19 28 19 12
15 72 42 63 36 54 23 21 31 21 13
18 87 50 75 43 65 28 25 38 25 17
24 115 67 100 58 87 37 34 50 34 23
27 130 75 113 65 97 41 38 56 38 26
30 144 83 125 72 108 46 42 63 42 29
36 173
100
150 87 130 55 50 75 50 35
45 216 125 188 108 162 69
63 94 63
44
54 260 150 225 130 195 83
75 113 75
62
81 390 225 338 195 293 123 113 169 98
78
Water heaters with amperage draw of 120 AMPS or more require factory installed
internal fusing to comply with Underwriters Laboratories requirements.
GPH Recovery Capacities
kW Temperature
Rise
Input 40°F 50°F 60°F 70°F 80°F 90°F 100°F 120°F 140°F
3 31 25 21 18 16 14 13 11
9
6 62 50 41 35 31 28 25 21 18
9 93 74 62 53 47 41 37 31 27
12 124 99 83 71 62 55 50 41 35
13.5 140 112 93
80 70 62 56
47
40
15 155 125 103 89 78 69 62 52
44
18 186 149 124 106 93 83 74 62
53
24 248 199 164 142 124 110 99
83
71
27 279 223 186 160 140 124 112 93
80
30 310 248 207 177 155 138 124 103
89
36 372 298 248 213 186 165 149 124 106
45 465 372 310 266 233 207 186 155 133
54 558 447 372 319 279 248 223 186 160
81 837 671 558 479 419 372 335 279 240
Multiply kW input by 3,412 to determine BTU input:
Example: 54kW x 3412 = 184,248 BTU’s
Recovery Computation Formula
GPH= (watts x 3.412) / (8.25 x °Temp. Rise)
