D.1: Nac Wiring - Honeywell Fire-Lite Alarms ES-1000X Manual

Wire Requirements
D.1 NAC Wiring
The following table lists NAC wiring requirements for the FACP.
NAC Load
(Amps)
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
Notes:
1. Calculations are based on Direct-Current Resistance data for uncoated copper wire, per National Electrical Code (2011 Edition) Table
8, Conductor Properties.
2. These distances reflect the worst case scenario and are based on the current draw of the highest candela strobes at the low end of the
supported NAC voltage with the entire load at the end of the circuit. Further distances can be achieved by performing a point-to-point
voltage calculation that more accurately reflects the specific devices used and how they are dispersed on the circuit.
3. If using Gentex brand notification appliances, the "UL Max" current rating published in their data sheets, must be used in order to
maintain performance under low battery conditions with the maximum wire resistances shown in the table above.
142
Max.
Max. allowable wire pair length
allowable
total loop
resistance
AWG 12 AWG 14
(ohms)
solid solid
12 3780
6 1890
4 1260
3 945
2.4 760
2 630
1.71 540
1.5 475
1.33 420
1.2 380
1.09 345
1 320
Table D.2 NAC Wiring Requirements for FACP
CLASS-B
(feet)
AWG 16 AWG 18
solid solid
2380 1495 940
1200 750 470
800 500 314
595 375 235
478 300 188
400 250 158
340 234 134
298 187 118
264 166 105
240 150 94
216 136 86
200 125 79
ES-1000X Series Manual — P/N LS10133-000FL-E:A 6/21/2023
CLASS-A
Max. allowable wire pair length
(feet)
AWG 12 AWG 14 AWG 16
solid solid solid
1890 1190
945 600
630 400
473 298
380 239
315 200
270 170
238 149
210 132
190 120
173 108
160 100
NAC Wiring
AWG 18
solid
748 470
375 235
250 157
188 118
150 94
125 79
107 67
94 59
83 53
75 47
68 43
63 40