Johnson Controls VMA1400 Series Manual page 9

Table 2: Maximum 24 VAC Secondary Cable Length for Given Power/Gauge
(U.S. Measurements)
8 Gauge
Power (VA) at
End of Wire
10
20
30
40
50
60
70
80
90
100
Mounting and Wiring VMA1400 Series Controllers Technical Bulletin
The following tables indicate the relationship between cable length
and power at the end of wires.
10 Gauge
3520 2200
1760 1110
1173 740
880 555
704 444
587 370
503 317
440 278
391 247
352 222
Table 3: Maximum 24 VAC Secondary Cable Length for
Power/Wire Gauge (Metric Measurements)
Power (VA) at
End of Wire
10
20
30
40
50
60
70
80
90
100
Cable Size
12 Gauge 14 Gauge
Cable Length (ft)
1400 880
700 440
467 293
350 220
280 176
233 147
200 126
175 110
156 98
140 88
Cable Size
2
4 mm 2.5 mm
Cable Length (Meters)
427 268
213 134
142
107
85
71
61
53
48
43
16 Gauge 18 Gauge
550 350
275 175
183 117
138 88
110 70
92 58
79 50
69 44
61 39
55 35
2
1.5 mm
168
84
89 56
67 42
54 34
45 28
38 24
34 21
30 19
27 17
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