Thermolec Standard Boiler - Manual (Page 5)

Page 3
Please use Table 3 below to select the wire size for the power supply. (It is not mandatory to use copper wire).
Wire Size 12 10 8 6 4 3 2 1 0 00 000
Amps @ 75°C (167°F) 20 30 45 65 85 100 115 130 150 175 200
Amps @ 90°C (194°F) 20 30 45 65 85 105 120 140 155 185 210
Notes :
Cable Amps Capacity vs Wire Size (Copper)
Table 3
1- This table should be used as a guide only. Always select the wire size according to the local
Electrical Code.
2- Always use wire suitable for 75°C (167°F) minimum, 300V or 600V as required.
3- All models with suffix "U" over 12 kW at 240V / 1ph require two feeders. Divide the total
Amps by 2 to select the proper wire size.
Dual-Energy Models B-5 B-6 B-8 B-9 B-10 B-12 B-15
kW 5 6 8 9 10 11.5 15
BTU / H 17,060 20,472 27,296 30,708 34,120 39,238 51,180
Total Amps 20.83 25.00 33.33 37.50 41.67 47.92 62.50
No. Of Power Supplies 1 x 30A 1 x 30A 1 x 50A 1 x 50A 1 x 60A 1 x 60A 1 x 80A
(Amps Per Breaker)
Dual-Energy Models B-18 B-20 B-23 B-27 B-30 B-35 B-40
kW 18 20 23 27 30 35 40
BTU / H 61,416 68,240 78,476 92,124 102,360 119,420 136,480
Total Amps 75.00 83.37 95.83 112.50 125.00 145.83 166.67
No. Of Power Supplies 1 x 100A 1 x 125A 1 x 125A 2 x 80A 2 x 80A 2 x 100A 2 x 125A
(Amps Per Breaker)
Dual-Energy Models B-18 B-24 B-30 B-35 B-36 B-42
kW 18 24 30 35 36 42
BTU / H 61,416 81,888 102,360 119,420 122,832 143,304
Amps @ 208V / 3ph 48.00 66.69 83.37 96.00
Disconnect Switch 60A 100A 100A 100A
Amps @ 600V / 3ph 17.34 23.12 28.90 34.68 40.46
Disconnect Switch 30A 30A 30A 60A 60A
Table 2
NOTE: Other models, voltages and capacities available upon request. Please contact the factory.
Standard Model Specifications @ 240V / 1ph (Canada)
Standard Model Specifications @ 3ph (Canada)
n/a
n/a
Mono Models B-3TMB B-6TMB B-9TMB B-11TMB
kW 3 6 9 11
BTU/H 10,236 20,472 30,708 37,532
Total Amps 12.5 25.0 37.5 45.8
Breaker size 1 x 20A 1 x 40A 1 x 50A 1 x 60A
TMB MONO Model Specifications @ 240V / 1ph (Canada)