Figure 13: Connecting Batteries; Figure 14: Connecting Ac Power - Secutron MR-2602 Installation Manual

NAC Wiring Chart
Maximu Maximu
m Total
Loop Current
(ohms) (A)
8.00 0.25
5.00 0.50
2.70 0.75
2.00 1.00
1.60 1.25
1.30 1.50
Note: This chart is based on a minimum source voltage of 22 volts and a maximum line loss
of 2 volts thus leaving a minimum of 20 volts at the last notification appliance.

Figure 13: Connecting Batteries

Figure 14: Connecting AC Power

Primary AC
18-Awg
m Wire
ft m
615 188
308 94
205 63
154 47
123 38
103 31
240V 50Hz
120V 60Hz
N
GND
16-Awg 14-Awg
Wire Wire
ft m ft
978 297 1,538
488 149 769
325 99 513
244 74 385
195 59 308
163 50 256
Note: The wire gauges must be
no less then the size required by
the Canadian Electrical Code
C22.1, Part 1, Section 32.
MR-2602 Installation & Operator's Manual
12-Awg
Wire
m ft m
469 2,500 762
235 1,250 381
156 833 254
117 625 191
94 500 152
78 417 127
13