![]() ![]() Bare Wire, Green Wire, or Green Wire with Yellow Stripes: Ground Wire. ![]() In order to help the user properly connect the wires, they are color-coded.Īctual color codes depend on the intended wire/cable use - color codes differ for DC (Direct Current), 120/208/240V AC, and for 277/480V AC wiring.įor residential use (120/208/240V AC), wire codes are, for example, for 10/4 wire, as follows: 10/4 Wire (10 4 Wire) consists of four wire conductors and one ground wire.10/3 Wire (10 3 Wire) consists of three wire conductors and one ground wire.10/2 Wire (10 2 Wire) consists of two wire conductors and one ground wire.When the cable is labeled as, for example, "10/3 Wire", that means that it is a cable consisting of three 10 gauge wire conductors and one ground wire. Hence, cables can be labeled as 10/2 Wire (also written as "10 2 Wire"), 10/3 Wire (10 3 Wire), and 10/4 Wire (10 4 Wire) - cables with more wires are generally rare and are often custom-built. Wires are rarely used individually - they are most often arranged in cables consisting of several wires. 10 Gauge Wire Cables: 10/2 Wire, 10/3 Wire, and 10/4 Wire Note: the actual surface temperature due to the current flowing through the wires will be lower, but to keep calculations simpler, maximum allowed currents are calculated using these formulas - the actual goal is to keep energy losses low in longer cables. ~200 feet (~61 m) 10 gauge wire can handle ~20 Amps. for shorter wires, 10 gauge wire can handle ~28 Amps, So, if You wonder how many Amps will 10 gauge wire carry, check the chart - in most situations 75☌/167☏ temperature is good to go - and read the values: The following chart lists the Ampacity of 10 gauge wire at certain temperatures for the wires of 50, 100, 150, and 200 feet. Thus, in order to keep the losses to an acceptable level, one has to take into account the wire length - for every 50 feet, 10% smaller Ampacity.įor example, the actual Ampacity for a 100 feet long 10 gauge wire with the maximum allowed surface temperature would be: Wire LengthĪs the wire length is increased, energy losses are increased. So, for safety reasons the Ampacity of 10 gauge wire is not 35 Amps but 28 Amps - for shorter wires. 80% RuleĨ0% rule means that the actual Ampacity is 80% of the default Ampacity for any given temperature, for example: 10 Gauge Wire Ampsĭefault 10 gauge wire Ampacity (the wire's ability to carry current) is 30 Amps 35 Amps or 40 Amps most situations, one uses Ampacity provided for 75☌/167☏ temperature, but there are few rules that have to be applied before finding the actual current that AWG 10 wire can handle. Ampacity (default): 30 Amps 35 Amps 40 Amps AWG 10 wire (10 gauge wire) is ~0.1 inch (~2.6 mm) thick without insulation. However, actual current carrying ability (Ampacity) also depends on the wire length, maximum wire surface temperature, and similar.ġ0 gauge wire or AWG 10 wire features physical dimensions of: 10 Gauge Wire (10/2 Wire, 10/3 Wire, 10/4 Wire): How Many Amps Can 10 Gauge Wire Handle?ġ0 gauge wire is a very popular wire thickness, often used for speakers, extension cords, home wiring, and other electric systems where wires can handle 20-30 Amps.
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