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Standard specifications for all models
Dual-Energy Models
kW
BTU / H
Total Amps
No. Of Power Supplies
(Breaker Size)
Dual-Energy Models
kW
BTU / H
Total Amps
No. Of Power Supplies
(
B
e r
a
k
r e
S
z i
) e
Dual-Energy Models
Amps @ 208V / 3ph
No. Of Power Supplies
(Breaker Size)
Amps @ 480V / 3ph
Disconnect Switch
NOTE: Other models, voltages and capacities available upon request. Please contact the factory.
Please use Table 3 below to select the wire size for the power supply.
Wire Size
Amps @ 75°C (167°F)
Amps @ 90°C (194°F)
Notes :
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.
4- COPPER WIRE ONLY.
Standard Models Specifications @ 240V / 1ph (U.S.A.)
B-5U-FFB B-6U-FFB B-8U-FFB B-9U-FFB B-10U-FFB B-12U-FFB B-15U-FFB
5
5.75
17,060
19,619
20.83
23.96
1 x 30A
1 x 30A
B-18U-FFB B-20U-FFB B-23U-FFB B-27U-FFB B-30U-FFB B-35U-FFB B-40U-FFB
18
20
61,416
68,242
75.00
83.37
1 x 60A
2 x 60A
1
x
5
0
A
TMB MONO Model Specifications @ 240V / 1ph (U.S.A.)
Mono Models B-3TMBU
kW
3
BTU/H
10,236
Total Amps
12.5
Breaker size
1 x 20A
Standard Model Specifications @ 3ph (U.S.A.)
B-18U-FFB B-24U-FFB B-30U-FFB B-35U-FFB B-40U-FFB
18
kW
BTU / H
61,416
48.00
1 x 60A
21.68
30A
Cable Amps Capacity vs Wire Size
12
10
20
30
20
30
Table 2
8
9
27,296
30,708
33.33
37.50
1 x 50A
1 x 50A
23
27
78,479
92,128
95.83
112.50
2 x 60A
2 x 50A
1
x
6
0
A
B-6TMBU
B-9TMBU
6
9
20,472
30,708
25.0
37.5
1 x 40A
1 x 50A
24
30
81,888
102,360
66.69
83.37
2 x 50A
2 x 60A
28.90
36.13
30A
60A
Table 3
8
6
4
3
45
65
85
100
45
65
85
105
Page 2
10
11.5
34,120
39,238
41.67
47.92
1 x 60A
1 x 60A
30
35
102,360
119,420
125.00
145.83
3 x 60A
4 x 50A
B-11TMBU
11
37,532
45.8
1 x 60A
35
40
119,420
136,480
96.00
n/a
2 x 60A
42.15
48.00
60A
60A
2
1
0
00
115
130
150
175
120
140
155
185
15
51,180
62.50
1 x 60A
1 x 30A
40
136,480
166.67
4 x 60A
000
200
210
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