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Hubbell TX - Page 14

Hubbell TX
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14
Model kW
Volts/
Phase Amps
Min.
Breaker
Size
Wire
Size
Conduit
Size
Wiring
Diagram
Element
AmpDraw
TX0273T6 27 600/3 26.0 30 8 ¾" 5 26.0
TX0306T3 30 380/3 45.6 50 8 ¾" 9 13.2
TX0316RS 31 208/1 149.0 175 2/0 1½" 6 25.3
TX0316R 31 208/3 86.0 100 3 1" 7 25.3
TX0316T7 31 415/3 43.1 50 8 ¾" 9 12.6
TX0336S 33 240/1 137.5 150 1/0 1¼" 6 22.9
TX0336T 33 240/3 79.4 90 4 1" 7 22.9
TX0366RS 36 208/1 173.1 200 3/0 1½" 6 28.9
TX0366R 36 208/3 99.9 110 2 1" 8 28.9
TX0366T3 36 380/3 54.7 60 6 ¾" 9 15.7
TX0366T7
3
6 415/3 50.1 60 6 ¾" 9 14.4
TX0366T4 36 480/3 43.3 50 8 ¾" 9 12.5
TX0406RS 40 208/1 192.3 225 4/0 2" 6 32.5
TX0406R 40 208/3 111.0 125 1 2" 8 32.5
TX0406T3 40 380/3 60.8 70 6 ¾" 9 17.7
TX0406T7 40 415/3 55.6 60 6 ¾" 9 16.2
TX0426S 42 240/1 175.0 200 3/0 1½" 6 29.2
TX0426T 42 240/3 101.0 110 2 1" 8 29.2
TX0426T4 42 480/3 50.5 60 6 ¾" 9 14.6
TX0426T6 42 600/3 40.4 45 8 ¾" 10 40.4
TX0486RS 48 208/1 230.8 250 250 2" 6 38.5
TX0486R 48 208/3 133.2 150 1/0 1¼" 8 38.5
TX0486S 48 240/1 200.0 225 4/0 2" 6 33.3
TX0486T 48 240/3 115.5 125 1 2" 8 33.3
TX0
4
86T7 48 415/3 66.8 80 4 1" 9 19.3
TX0486T4 48 480/3 57.7 70 6 ¾" 9 16.7
TX0486T6 48 600/3 46.2 50 8 ¾" 10 46.2
TX0506T3 50 380/3 76.0 80 4 1" 9 22.2
TX0546S 54 240/1 225.0 250 250 2" 6 37.5
TX0546T 54 240/3 129.9 150 1/0 1¼" 8 37.5
TX0546T4 54 480/3 65.0 70 4 1" 9 18.8
TX0546T6 54 600/3 52.0 60 6 ¾" 10 52.0
Tankless water heaters are considered a non-continuous load.
If a multiple feed installation is used, it is acceptable to install up to two conductors in
one line side port. Additionally, when a power distribution block is supplied,
additional conductors may be installed in an open load side port of the power
distribution block.
Wiring sizing listed is for 75°C THHN. 60°C or 90°C wire may be used. Refer to
NEC table 310.16 for sizing.
Conductors should be sized to maintain a voltage drop of less than 3% under load.
Electrical specifications for the High Flow (HX) models are the same as listed for the
Low Flow (TX) models.

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