Appendix C: Dc12V Wire Diameter Vs. Transmission Distance - Kedacom KSCA120 Series Quick Start Manual

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Appendix C: DC12V Wire Diameter VS. Transmission Distance

The recommended max transmission distance when the wire diameter is certain and the DC12V voltage loss
rate is less than 10% (For DC12V powered devices, the maximum allowed voltage loss rate is 10%. All the
wires in the following table are cooper wires, whose electrical resistivity is ρ = 0.0175Ω*mm2/m)
Diameter
Distance
(m)
Power (W)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
[Note]:
1. When the transmission power is over 60W, you must use wires with diameter of 1.0 (18AWG) or above;
2. The requirements of diameter apply to single, solid and round cooper wire. The AWG value of multi-
stranded wires is dependent on the total CSA (Cross Sectional Area) of all wires.
(mm)
0.8(20AWG)
38(125)
19(63)
13(42)
10(31)
8(25)
6(21)
5(18)
5(16)
4(14)
4(13)
3(11)
3(10)
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
1.0(18AWG )
1.25(16AWG)
61(199)
96(315)
30(99)
48(157)
20(66)
32(105)
15(50)
24(79)
12(40)
19(63)
10(33)
16(52)
9(28)
14(45)
8(25)
12(39)
7(22)
11(35)
6(20)
10(31)
6(18)
9(29)
5(17)
8(26)
5(15)
7(24)
4(14)
7(22)
4(13)
6(21)
4(12)
6(20)
4(12)
6(19)
3(11)
5(17)
3(10)
5(17)
3(10)
5(16)
27
2.0(12AWG )
244(801)
122(400)
81(267)
61(200)
49(160)
41(133)
35(114)
31(100)
27(89)
24(80)
22(73)
20(67)
19(62)
17(57)
16(53)
15(50)
14(47)
14(44)
13(42)
12(40)

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