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C1473M-D (9/08) 9
Tables B and C show the recommended maximum distances for 24 VAC applications; the values are
calculated with a 10 percent voltage drop. (Ten percent is generally the maximum allowable voltage drop
for AC-powered devices.)
Table B. 24 VAC Wiring Distances
Table A. Total Wattage Values
Model Voltage
Maximum Power
Consumption*
EH2508-1 120 41
EH2508-2 24 38
EH2508-3 230 43
EH2512-1 120 41
EH2512-2 24 38
EH2512-3 230 43
EH2515-1 120 41
EH2515-2 24 38
EH2515-3 230 43
*Maximum power consumption includes 5 W for the camera.
Wire Gauge
Maximum distance from
transformer to load
Total
VA
20
(0.5 mm
2
)
18
(1.0 mm
2
)
16
(1.5 mm
2
)
14
(2.5 mm
2
)
12
(4.0 mm
2
)
10
(6.0 mm
2
)
10 283
(86)
451
(137)
716
(218)
1142
(348)
1811
(551)
2880
(877)
20 141
(42)
225
(68)
358
(109)
571
(174)
905
(275)
1440
(438)
30 94
(28)
150
(45)
238
(72)
380
(115)
603
(183)
960
(292)
40 70
(21)
112
(34)
179
(54)
285
(86)
452
(137)
720
(219)
50 56
(17)
90
(27)
143
(43)
228
(69)
362
(110)
576
(175)