In order for your automotive electrical system to perform properly, your wire must be sized properly based on the amount of current (amperage) the wire must carry, and the length that the wire needs to be.

Recommended Length and Amperage for Automotive Wire while maintaining a 2% or less voltage drop at 12 volts Automotive Wire Size 5 Amps 10 Amps 15 Amps 20 Amps 25 Amps 30 Amps 20 Gauge Wire (AWG) 4.5 ft 2.2 ft 1.6 ft . 18 Gauge Wire (AWG) 7.3 ft 3.7 ft 2.4 ft 1.8 ft 16 Gauge Wire (AWG) 11.5 ft 5.8 ft 3.8 f

The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 Volts, 60°C through 90°C (140°F through 194°F), not more than three current-carrying conductors in raceway, cable, or earth (directly buried), based on ambient air temperature of 30°C (86°F).

An automotive wire amp chart provides valuable information about the current-carrying capacity of different wire gauges. It shows the maximum amperage that each wire gauge can handle, allowing you to select the appropriate wire size for your specific needs.

Find the right automotive wire size using an interactive AWG chart that takes into account load current, temperature, wire length and voltage drop.

Wire Sizing Chart 1. Measure the length of wire in the circuit including the ground return. A two-wire circuit will be the total lengths of both the wires. Account for both vehicles on auto and trailer applications. 2. Determine the total current draw of the circuit and round up …

* For 6 volt use, multiply the amperage by two. * For 24 volt use, divide the amperage by two. a .44 voltage drop for charging, a maximum operating temperature of 150F. A larger. wire can be used to decrease the voltage drop or to operate at a higher temperature.

The chart below will suffice for most motorsport, automotive and industrial applications, and this assumes your wire/s are bundled in heat-shrink and you are using 1 of the wire types below :

Multiply ampacities by the Correction Factors by Number of Conductors and the Correction Factors by Ambient Temp. tables below to adjust for different numbers of conductors & ambient temperatures, respectively.

2023年12月16日 · Here is the table that comes with different values, like the resistance of wire gauges and the current value for copper conductors with plastic insulation. The diameter …