Rain Bird IC System, Design Manual, Page: 12 / 21

12 IC System
TM
Design Guide, v2.3
If an individual branch exceeds 25% of the total Trunk wire length, that branch shall be designed with
the same gauge wire as the Trunk wire. Other branches less than 25% can be designed with a wire size
no more than 1 size smaller than the Trunk wire size.
Wire Sizing Charts – (last updated April 2013)
Number
of
Units 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000
50 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG
100 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG
150 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG
200 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG
250 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG
300 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG
350 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG
400 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG
450 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG
500 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 10 AWG
550 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 10 AWG 10 AWG 10 AWG
600 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 10 AWG 10 AWG 10 AWG 10 AWG
650 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 12 AWG 10 AWG 10 AWG 10 AWG - -
700 14 AWG 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 10 AWG 10 AWG 10 AWG - - -
750 14 AWG 14 AWG 14 AWG 14 AWG 12 AWG 12 AWG 12 AWG 12 AWG 10 AWG 10 AWG 10 AWG 10 AWG - - -
April 2013
Wire distance in feet
Number
of
Units 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500
50 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2
100 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2
150 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2
200 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2
250 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2
300 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2
350 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2
400 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2
450 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2
500 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2
550 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 6.0mm^2
600 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 6.0mm^2 6.0mm^2
650 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 6.0mm^2 6.0mm^2 6.0mm^2 6.0mm^2
700 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 6.0mm^2 6.0mm^2 6.0mm^2 6.0mm^2 -
750 2.5mm^2 2.5mm^2 2.5mm^2 2.5mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 4.0mm^2 6.0mm^2 6.0mm^2 6.0mm^2 6.0mm^2 - -
April 2013
Wire distance in meters
Initial Length of Run from Interface to First ICM
In addition to the above wire sizing chart, if the chart recommends 14 AWG (2.5 mm
2
) wire path and the
initial run of wire between the Interface and the first ICM on the wire path is greater than 2,500 feet
(750m) then the initial length of wire (from interface to the first ICM) should be upsized by one
additional wire size to 12 AWG (4.0mm
2
). This is only necessary when 14 AWG (2.5 mm
2
) is the
recommended wire size. If the chart recommends 12 AWG (4.0 mm
2
) based on number of units and
total length of run of the wire path, then additional upsizing in a long initial run of wire is not necessary.