Cut Sheet

12V VOLTAGE DROP INFORMATION (for 150VA Remote Mount Magnetic Transformers)
5’ 11.22 11.29 12.04 12.08 12.02 12.09 12.86 12.92
10 ’ 11.04 11.18 11.94 12.01 11.83 11.97 12.73 12.85
15 ’ 10 . 8 6 11.07 11.84 11.95 11.65 11.86 12.61 12.79
20’ 10.68 10.96 11.74 11.89 11.46 11.74 12.48 12.72
25’ 10.50 10.85 11.64 11.82 11.28 11.63 12.36 12.66
30’ 10.32 10.74 11.54 11.76 11.09 11.51 12.23 12.59
40’ 9.96 10.52 11.34 11.63 10.72 11.28 11.98 12.46
50’ 9.60 10.30 11.14 11.51 10.35 11.05 11.73 12.33
60’ 9.24 10.08 10.94 11.38 9.98 10.82 11.48 12.20
80’ 8.52 9.64 10.54 11.12 9.24 10.36 10.98 11.94
100’ 7.80 9.20 10.14 10.87 8.50 9.90 10.48 11.68
120’ 7.08 8.76 9.74 10.62 7.76 9.44 9.98 11.42
140’ 6.36 8.32 9.34 10.36 7.02 8.98 9.48 11.16
Standard Tap
Boost Tap
12V, 12.5A, 150W
12V, 6.25A, 75W
12V, 12.5A, 150W
12V, 6.25A, 75W
#12
#10
Distance from
T
ransformer
to 1st Lamp
#12
#1
0
#12
#10
#12
#10
The shaded areas represent the suggested operating range of 11.0 to 12.0 volts at the first lamp on the trac. Juno suggests that the voltage measured at
the first lamp be between 11.0 and 11.8 volts for 12V incandescent lamps and between 11.4 and 12.0 volts for 12V LED fixtures. Do not exceed 12 volts.
A voltmeter should be used to confirm that the proper voltage is present.
Table predicting voltage at first lamp for various wire lengths, gauges, inputs and loads
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D3.1.3
TRAC 12, TRAC 12/25, FLEX 12
Low Voltage Systems
12V AC REMOTE MOUNT MAGNETIC TRANSFORMERS
TL575, TL549N , TL550N, TL554N and TF5150
12V VOLTAGE DROP INFORMATION (for 75VA Remote Mount Magnetic Transformers)
Standard Tap
Boost Input
12V, 6.3A, 75W
12V, 3.3A, 40W
12V, 6.3A, 75W
12V, 3.3A, 40W
#12
#10
Distance from
T
ransformer
to 1st Lamp
#12
#1
0
#12
#10
#12
#10
The shaded areas represent the suggested operating range of 11.0 to 12.0 volts at the first lamp on the trac. Juno suggests that the voltage measured at
the first lamp be between 11.0 and 11.8 volts for 12V incandescent lamps and between 11.4 and 12.0 volts for 12V LED fixtures. Do not exceed 12 volts.
A voltmeter should be used to confirm that the proper voltage is present.
Table predicting voltage at first lamp for various wire lengths, gauges, inputs and loads
12V, 1.7A, 20W
#12
#10
5’ 11.53 11.56 11.71 11.73 11.89 11.90 12.18 12.21 12.43 12.46
10 ’ 11.46 11.51 11.66 11.70 11.87 11.88 12.09 12.15 12.37 12.43
15 ’ 11.39 11.47 11.62 11.67 11.85 11.87 12.00 12.10 12.31 12.39
20’ 11.31 11.42 11.57 11.64 11.83 11.86 11.91 12.04 12.26 12.35
25’ 11.24 11.38 11.53 11.61 11.81 11.85 11.82 11.99 12.20 12.32
30’ 11.17 11.33 11.48 11.58 11.79 11.83 11.73 11.93 12.14 12.28
40’ 11.03 11.24 11.39 11.52 11.75 11.81 11.56 11.82 12.03 12.21
45’ 10.95 11.20 11.34 11.49 11.73 11.79 11.47 11.76 11.97 12.17
65’ 10.67 11.02 11.16 11.38 11.65 11.74 11.1111.54 11.74 12.03
75’ 10.52 10.92 11.05 11.31 11.58 11.69 10.93 11.43 11.63 11.95
100’ 10.17 10.70 10.84 11.18 11.51 11.65 10.49 11.15 11.34 11.77