70
Table 53 – (cont.) MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.
UNIT
N O M . V --- P H --- H Z
IFM
TYPE
ELECTRIC HEATER NO C.O. or UNPWR C.O.
Nom*
(kW)
FLA
NO P.E. w/ P.E. (pwrd fr/unit)
MCA MOCP
DISC. SIZE
MCA MOCP
DISC. SIZE
FLA LRA FLA LRA
50TC*A12
208/230---3--- 60
STD
None None 45.8 60 44 263 49.6 60 48 267
7.8/10.4 21.7/25.0 45.8/45.8 60/60 44/44 263/263 49.6/49.6 60/60 48/48 267/267
12.0/16.0 33.4/38.5 48.3/54.6 60/60 44/50 263/263 53.0/59.4 60/60 49/55 267/267
24.0/32.0 66.7/77.0 89.9/102.8 90/110 83/95 263/263 94.6/107.5 100/110 87/99 267/267
31.8/42.4 88.4/102.0 117.0/134.0 125/150 108/123 263/263 121.8/138.8 125/150 112/128 267/267
37.6/50.0 104.2/120.3 136.8/126.8 150/150 126/144 263/263 141.5/131.6 150/150 130/149 267/267
MED
None None 50.6 60 50 306 54.4 80 54 310
7.8/10.4 21.7/25.0 50.6/50.6 60/60 50/50 306/306 54.4/54.4 80/80 54/54 310/310
12.0/16.0 33.4/38.5 54.3/60.6 60/80 50/56 306/306 59.0/65.4 80/80 54/60 310/310
24.0/32.0 66.7/77.0 95.9/108.8 100/110 88/100 306/306 100.6/113.5 110/125 93/104 310/310
31.8/42.4 88.4/102.0 123.0/140.0 125/150 113/129 306/306 127.8/144.8 150/150 118/133 310/310
37.6/50.0 104.2/120.3 142.8/132.8 150/150 131/150 306/306 147.5/137.6 150/150 136/154 310/310
HIGH
None None 55.6 80 55 315 59.4 80 60 319
7.8/10.4 21.7/25.0 55.6/55.6 80/80 55/55 315/315 59.4/59.4 80/80 60/60 319/319
12.0/16.0 33.4/38.5 60.5/66.9 80/80 56/62 315/315 65.3/71.6 80/80 60/66 319/319
24.0/32.0 66.7/77.0 102.1/115.0 110/125 94/106 315/315 106.9/119.8 110/125 98/110 319/319
31.8/42.4 88.4/102.0 129.3/146.3 150/150 119/135 315/315 134.0/151.0 150/175 123/139 319/319
37.6/50.0 104.2/120.3 149.0/139.1 150/175 137/156 315/315 153.8/143.8 175/175 141/160 319/319
4 6 0 --- 3 --- 6 0
STD
None None 25.1 30 24 133 26.9 40 26 135
13.9 16.7 25.1 30 24 133 26.9 40 26 135
16.5 19.8 28.0 30 26 133 30.3 40 28 135
33.0 39.7 52.9 60 49 133 55.1 60 51 135
41.7 50.2 66.0 70 61 133 68.3 70 63 135
50.0 60.1 63.4 70 72 133 65.6 70 74 135
MED
None None 26.9 40 26 155 28.7 45 28 157
13.9 16.7 26.9 40 26 155 28.7 45 28 157
16.5 19.8 30.3 40 28 155 32.5 45 30 157
33.0 39.7 55.1 60 51 155 57.4 60 53 157
41.7 50.2 68.3 70 63 155 70.5 80 65 157
50.0 60.1 65.6 80 74 155 67.9 80 76 157
HIGH
None None 29.9 45 30 159 31.7 45 32 161
13.9 16.7 30.1 45 30 159 32.4 45 32 161
16.5 19.8 34.0 45 31 159 36.3 45 33 161
33.0 39.7 58.9 60 54 159 61.1 70 56 161
41.7 50.2 72.0 80 66 159 74.3 80 68 161
50.0 60.1 69.4 80 78 159 71.6 80 80 161
5 7 5 --- 3 --- 6 0
STD
None None 18.5 30 18 95 22.3 30 22 99
17.0 20.4 28.0 30 26 95 32.8 35 30 99
34.0 40.9 53.6 60 49 95 58.4 60 54 99
51.0 61.3 63.8 70 73 95 68.6 80 77 99
MED
None None 19.3 30 19 106 23.1 30 23 110
17.0 20.4 29.0 30 27 106 33.8 35 31 110
34.0 40.9 54.6 60 50 106 59.4 60 55 110
51.0 61.3 64.8 70 74 106 69.6 80 78 110
HIGH
None None 22.1 30 22 120 25.9 30 26 124
17.0 20.4 32.5 35 30 120 37.3 40 34 124
34.0 40.9 58.1 60 53 120 62.9 70 58 124
51.0 61.3 68.3 80 77 120 73.1 80 81 124
* Nominal valves, listed as 208/240V, 480V or 600V as appropriate.
See Legend and calculations on page 72.
50TC
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