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975-0004-01-02 Rev D 43
Table 2-4
One-Way Wire Distance and Wire Size
Maximum One-way Wire Distance for a < 3% Voltage drop
12 Vdc Application Shown
For 24 Vdc Systems, Multiply distance by 2
For 48 Vdc Systems, Multiply distance by 4
Distance in Feet (meters)
Distance in Feet (Meters)
a
a.These wire sizes are not approved by UL to be installed in the controller, but may be used
externally of the controller (using a splicer block) to reduce voltage drop and improve
performance.
Amps
12
AWG
10
AWG
8
AWG
6
AWG
4
AWG
3
AWG
2
AWG
1
AWG
1/0
AWG
2/0
AWG
10
8.8 ft.
(2.68 m)
14 ft.
(4.27 m)
22.2 ft.
(6.77 m)
35.3 ft.
(10.76 m)
56.1 ft.
(17.10 m)
70.9 ft.
(21.61 m)
89.6 ft.
(27.31 m)
112.5 ft.
(34.29 m)
141.7 ft.
(43.19 m)
225.8 ft.
(68.82 m)
12
7.3 ft.
(2.23 m)
11.6 ft.
(3.54 m)
18.5 ft.
(5.64 m)
29.4 ft.
(8.96 m)
46.7 ft.
(14.23 m)
59.1 ft.
(18.01 m)
74.6 ft.
(22.74 m)
93.7 ft.
(28.56 m)
118.1 ft.
(36.00 m)
188.2 ft.
(57.36 m)
14
6.3 ft.
(1.92 m)
10 ft.
(3.05 m)
15.9 ft.
(4.85 m)
25.2 ft.
(7.68 m)
40.1 ft.
(12.22 m)
50.6 ft.
(15.42 m)
64.0 ft.
(19.51 m)
80.4 ft.
(24.51 m)
101.2 ft.
(30.85 m)
161.3 ft.
(49.16 m)
16
5.5 ft.
(1.68 m)
8.7 ft.
(2.65 m)
13.9 ft.
(4.24 m)
22.1 ft.
(6.74 m)
35.0 ft.
(10.67 m)
44.3 ft.
(13.50 m)
56.0 ft.
(17.07 m)
70.3 ft.
(21.43 m)
88.6 ft.
(27.01 m)
141.2 ft.
(43.04 m)
18
4.9 ft.
(1.49 m)
8.8 ft.
(2.38 m)
12.4 ft.
(3.78 m)
19.6 ft.
(5.97 m)
31.2 ft.
(9.51 m)
39.4 ft.
(12.01 m)
49.8 ft.
(15.18 m)
62.5 ft.
(19.05 m)
78.7 ft.
(23.99 m)
125.5 ft.
(38.25 m)
20
4.4 ft.
(1.34 m)
7 ft.
(2.13 m)
11.1 ft.
(3.38 m)
17.6 ft.
(5.36 m)
28.0 ft.
(8.53 m)
35.4 ft.
(10.79 m)
44.8 ft.
(13.66 m)
56.2 ft.
(17.13 m)
70.9 ft.
(21.61m)
112.9 ft.
(34.41 m)
25
5.6 ft.
(1.71 m)
8.9 ft.
(2.71 m)
14.1 ft.
(4.30 m)
22.4 ft.
(6.83 m)
28.3 ft.
(8.63 m)
35.8 ft.
(10.91 m)
45.0 ft.
(13.72 m)
56.7 ft.
(17.28 m)
90.3 ft.
(27.52 m)
30
4.7 ft.
(1.43 m)
7.4 ft.
(2.26 m)
11.8 ft.
(3.60 m)
18.7 ft.
(5.70 m)
23.6 ft.
(7.19 m)
29.9 ft.
(9.11 m)
37.5 ft.
(11.43 m)
47.2 ft.
(14.39 m)
75.3 ft.
(22.95 m)
35
6.4 ft.
(1.95 m)
10.1 ft.
(3.08 m)
16.0 ft.
(4.88 m)
20.2 ft.
(6.16 m)
25.6 ft.
(7.80 m)
32.1 ft.
9.78 m)
40.5 ft.
(12.34 m)
64.5 ft.
(19.66 m)
40
5.6 ft.
(1.71 m)
8.8 ft.
(2.68 m)
14.0 ft.
(4.27 m)
17.7 ft.
(5.39 m)
22.4 ft.
(6.83 m)
28.1 ft.
(8.56 m)
35.4 ft.
(10.79 m)
56.5 ft.
(17.22 m)
45
7.8 ft.
(2.38 m)
12.5 ft.
(3.81 m)
15.7 ft.
(4.79 m)
19.9 ft.
(6.07 m)
25.0 ft.
(7.62 m)
31.5 ft.
(9.60 m)
50.2 ft.
(15.30 m)
50
7.1 ft.
(2.16 m)
11.2 ft.
(3.41 m)
14.2 ft.
(4.33 m)
17.9 ft.
(5.46 m)
22.5 ft.
(6.86 m)
28.3 ft.
(8.63 m)
45.2 ft.
(13.78 m)
60
6.3 ft.
(1.92 m)
9.3 ft.
(2.83 m)
11.8 ft.
(3.60 m)
14.9 ft.
(4.54 m)
18.7 ft.
(5.7 m)
23.6 ft.
(7.19 m)
37.6 ft.
(11.5 m)