Installation manual

Installation Instructions
151174 3-11
(The formula used to generate this chart is shown in the note below).
Note: The following formulas were used to generate the wire distance chart:
Table 3-2: Wire Distances Per Wire Gauge
Wiring Distance: SBUS Modules to Panel
Total Worst Case
Current Draw (amps)
22 Gauge 18 Gauge 16 Gauge 14 Gauge
0.100 617 ft. 1563 ft. 2488 ft. 3937 ft.
0.200 309 ft. 781 ft. 1244 ft. 1969 ft.
0.300 206 ft. 521 ft. 829 ft. 1312 ft.
0.400 154 ft. 391 ft. 622 ft. 984 ft.
0.500 123 ft. 313 ft. 498 ft. 787 ft.
0.600 103 ft. 260 ft. 415 ft. 656 ft.
0.700 88 ft. 223 ft. 355 ft. 562 ft.
0.800 77 ft. 195 ft. 311 ft. 492 ft.
0.900 69 ft. 174 ft. 276 ft. 437 ft.
1.000 (Max) 62 ft. 156 ft. 248 ft. 394 ft.
Maximum Resistance (Ohms) =
2.0 Volts
Total Worst Case Current Draw (amps)
Maximum Wire Length (Feet) =
(6000 feet maximum)
Maximum Resistance (Ohms)
* 500
Rpu
where: Rpu = Ohms per 1000 feet for various Wire Gauges (see table below)
Table 3-3: Typical Wire Resistance Per 1000 ft.
Wire Gauge Ohms per 1000 feet (Rpu)
22 16.2
18 6.4
16 4.02
14 2.54