Leviton a-2000 - Power Wire - Run Length

Page 82
Control Device Loads
Power Wire - Run Length
The maximum total run length of each segment is a function of the total number
of unit loads. A run becomes too long when the voltage drop, due to wire size and
run length, increases to a point where the station does not have sufficient voltage
to operate. The maximum run length, in feet, based on the total number of unit
loads is shown below:
(2) Tables are provided, (1) @ 12VDC and (1) at 24VDC. Make
sure that you use the correct table!
Wire Size vs. Length of Runs - Power Wiring @24 VDC
Photocell, pcout-
000
-
Photocell, pcsky-
000
-
Control Devices Unit
Load
@12VD
C
Unit
Load
@24VD
C
Station Type Unit
Load
@
12VDC
Unit
Load @
24VDC
Voltage Drop Table
(Ams)
(
Unit Loads
12V 24V 12V 24V 12V 24V 12V 24V 12V 24V
0.25 10 756 3,528 1,200 5,600 1,904 8,885 3,000 14,000 4,800 22,400
0.50 20 378 1,764 600 2,800 952 4,443 1,500 7,000 2,400 11,200
0.75 30 252 1,176 400 1,867 635 2,962 1,000 4,667 1,600 7,467
1.00 40 189 882 300 1,400 476 2,221 750 3,500 1,200 5,600
1.25 50 151 706 240 1,120 381 1,777 600 2,800 960 4,480
1.50 60 126 588 200 933 317 1,481 500 2,333 800 3,733
1.75 70 108 504 171 800 272 1,269 429 2,000 686 3,200
2.00 80 150 700 238 1,111 375 1,750 600 2,800
2.25 90 133 622 212 987 333 1,556 533 2,489
2.50 100 120 560 190 889 300 1,400 480 2,240
2.75 110 109 509 173 808 273 1,273 436 2,036
3.00 120 100 467 159 740 250 1,167 400 1,867
3.25 130 146 683 231 1,077 369 1,723
3.50 140 136 635 214 1,000 343 1,600
3.75 150 127 592 200 933 320 1,493
4.00 160 119 555 188 875 300 1,400
4.25 170 112 523 176 824 282 1,318
4.50 180 106 494 167 778 267 1,244
4.75 190 100 468 158 737 253 1,179
5.00 200 150 700 240 1,120
10AWGCurrent 18AWG 16AWG 14AWG 12AWG