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Power cable calculation, Power wire chart – Kicker KX200.4 User Manual

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(Total RMS power output into 4W

W) x 2 = (Total input wattage [Watts])

(Total input wattage)

= (Maximum input current [Amps])

(Supply Voltage)

Example: Amplifier with a rating of 100 watts per channel into 4W

W

200 x 2 = 400 Watts (Total input power)

400 Watts / 12.5 Volts = 32 amps (Total maximum draw)

Use this value of current draw to determine wire size

from the chart below.

Power Wire Chart

Minimum Gauge wire

Draw Up to 4 to 7 to 10 to 13 to 16 to 19 to 22 to

(Amps) 4 ft. 7ft. 10ft. 13 ft. 16 ft. 19 ft. 22 ft. 28 ft.

0-20 14 12 12 10 10 8 8 8

20-35 12 10 8 8 6 6 6 4

35-50 10 8 8 6 6 4 4 4

50-65 8 8 6 4 4 4 4 2

65-85 6 6 4 4 2 2 2 0

85-105 6 6 4 2 2 2 2 0

105-125 4 4 4 2 2 0 0 0

125-150 2 2 2 2 0 0 0 00

Power Cable Calculation

KX100.2 & KX200.4 Technical Manual

Version 2.0

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