XSD27ZIR
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APPENDIX II:
WIRE DIAMETER & TRANSMISSION CHART
The transmission distances listed below are the farthest ones recommended for each given wire diameter when the 24V AC
voltage loss ratio is below 10% (for equipment powered by AC, the maximum voltage loss ratio allowed is 10%).
For example, a set of equipment with nominal power as 80VA, installed 35 feet (10m) away from transformer, needs a wire
with a minimum diameter of 0.8000mm.
Minimum Diameter of Wire (mm)
Nominal Power (VA)
0.8000
1.000
1.250
2.000
10
283 ft / 86 m
451 ft / 137 m
716 ft / 218 m
1811 ft / 551 m
20
141 ft / 42 m
225 ft / 68 m
358 ft / 109 m
905 ft / 275 m
30
94 ft / 28 m
150 ft / 45 m
238 ft / 72 m
603 ft / 183 m
40
70 ft / 21 m
112 ft / 34 m
179 ft / 54 m
452 ft / 137 m
50
56 ft / 17 m
90 ft / 27 m
143 ft / 43 m
362 ft / 110 m
60
47 ft / 14 m
75 ft / 22 m
119 ft / 36 m
301 ft / 91 m
70
40 ft / 12 m
64 ft / 19 m
102 ft / 31 m
258 ft / 78 m
80
35 ft / 10 m
56 ft / 17 m
89 ft / 27 m
226 ft / 68 m
90
31 ft / 9 m
50 ft / 15 m
79 ft / 24 m
201 ft / 61 m
100
28 ft / 8 m
45 ft / 13 m
71 ft / 21 m
181 ft / 55 m
110
25 ft / 7 m
41 ft / 12 m
65 ft / 19 m
164 ft / 49 m
120
23 ft / 7 m
37 ft / 11 m
59 ft / 17 m
150 ft / 45 m
130
21 ft / 6 m
34 ft / 10 m
55 ft / 16 m
139 ft / 42 m
140
20 ft / 6 m
32 ft / 9 m
51 ft / 15 m
129 ft / 39 m
150
18 ft / 5 m
30 ft / 9 m
47 ft / 14 m
120 ft / 36 m
160
17 ft / 5 m
28 ft / 8 m
44 ft / 13 m
113 ft / 34 m
170
16 ft / 4 m
26 ft / 7 m
42 ft / 12 m
106 ft / 32 m
180
15 ft / 4 m
25 ft / 7 m
39 ft / 11 m
100 ft / 30 m
190
14 ft / 4 m
23 ft / 7 m
37 ft / 11 m
95 ft / 28 m
200
14 ft / 4 m
22 ft / 6 m
35 ft / 10 m
90 ft / 27 m
Summary of Contents for XSD27ZIR
Page 13: ...XSD27ZIR 13 SYSTEM CONNECTION ...
Page 35: ...XSD27ZIR 35 ...
