Installation and Operation Manual
Appendix‐B: Wire Selection Guide
SLC Wire Selection Guide
Maximum Loop Current = 100mA@NSB, 220mA@Alarm
Maximum Loop Capacitance = 0.1uF
Wire Gauge
Wire
(AWG)
Resistance
(ohms/km)
12
5.31
13
6.69
14
8.45
15
10.6
16
13.5
17
16.3
18
21.4
Table 16 Addressable Loop Wiring
Maximum Wiring Run to Last Device
Maximum current
90mA
ft
m
15099
4603
11985
3654
9488
2893
7564
2306
5939
1811
4919
1500
3747
1142
Maximum current
150mA
ft
9060
7191
5693
4538
3563
2951
2248
58
Maximum current
220mA
m
ft
2762
6177
2192
4903
1736
3882
1384
3094
1086
2430
900
2012
685
1533
m
1883
1495
1183
943
741
613
467