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12 Volt - Electric Automotive Wiring

Maximum wire lengths vs. currents in the 12 volt electrical system of a car.

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Current loads and maximum wire lengths in 12V electric systems are indicated in the diagrams below.

12 Volt Electric Wire - Length vs. Current Load - metric units

print 12V Automotive Electric Wiring Chart

1 ft (foot) = 0.3048 m

Current load - amps - and maximum wire length is based on maximum 0.5 volt voltage drop over the length of the wire.

American Wire Gauge (AWG)

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Related Topics

Electrical - Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.

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