How many amps can 20 gauge wire handle at 12 volts?

Wire Amperage Capacity Chart

 Recommended Length and Amperage for Automotive Wire while maintaining a 2% or less voltage drop at 12 volts
Automotive Wire Size5 Amps20 Amps
20 Gauge Wire (AWG)4.5 ft 
18 Gauge Wire (AWG)7.3 ft1.8 ft
16 Gauge Wire (AWG)11.5 ft2.9 ft

What is 20 AWG wire?

AWG Metric Conversion Chart (AWG to mm)

American Wire Gauge (AWG)Diameter (in)Diameter (mm)

How many amps can 22 AWG wire handle?

The maximum amperage for a 22-gauge wire is . 92 amps for power transmission, according to the Handbook of Electronic Tables and Formulas for American Wire Gauge. For amperage higher than . 92 you will require a lower-gauge, or thicker, wire.

How much current can a 18 AWG wire carry?

A conservative estimate for several feet of 18 AWG (American Wire Gauge) wire is 16 Amps. However, length plays an important role in the amount of Amps a wire can carry. If you have only 12 inches of wire, the 18 gauge wire can handle more than 16 Amps.

How many amps can 18g handle?

An 18-gauge wire can handle about 16 amps of current. It is one of the smaller wires in diameter and is commonly used for low voltage lighting.

What wire do you use for 20 amps?

A 20-amp circuit, protected by a 20-amp breaker or fuse, must be served by 12-gauge or 10-gauge wire.

What is the diameter of 20 AWG wire?

Breaking Force for Copper Wire

AWG gaugeConductor Diameter InchesOhms per 1000 ft.

What is 20 gauge copper wire?

Bare copper wire is a single strand wire with no coating. It is used in a variety of uninsulated applications including electrical hook-ups, jumpers, and grounds. It can also be used to make jewelry.

What is a 20 9 AWG wire?

Nomonal C-C Cap. pF/ft: 28.0

Wire Size20 AWG
# of Conductors9 Conductors
O.D. (Inches)0.317
Alt to Belden #9455

What current can 24 AWG carry?

From Current Carrying Capacity of Copper Conductors, has a maximum temperature of 90°C. At an ambient temperature of 30°C, 24AWG has a maximum current of 7A.

Can 22 gauge wire handle 24 volts?

As long as your device pulls 600mA or less, 22 gauge wire should be sufficient. If it needs current in the 2 amp range, you’ll need 18 gauge wire.

How many watts can 18 AWG handle?

18-gauge automotive wire can handle anywhere between 3 and 15 amps, depending on the distance (12.2 ft to 2.4 ft). The shorter the wire, the more current it can handle.

How many amps can 16 AWG wire handle?

A 16 gauge wire can handle a maximum of 13 amps. The amperage of the wire is inversely proportional to the amount of current it transmits in amps. The larger the gauge size, the smaller the wire; hence, the lesser current it can transmit.

How much current can 16 AWG carry?

AWG #16 copper wire has a resistance of 4.016 Ω per 1000 feet, or 4.016 mΩ/foot, or 13.18 mΩ/m. If you need to keep the voltage drop along 1 m of wire to 100 mV or less, then you can’t push more than 7.59 A thru it. If you need to limit the power dissipation to 1 W/foot, then you can’t push more than 15.8 A thru it.

How many watts can 16 AWG wire handle?

840 Watts

Extension Cord Wire Gauges, Amperage Rating, and Wattage
Wire GaugeAmperage RatingWattage Rating
#185 Amps600 Watts
#167 Amps840 Watts
#1412 Amps1,440 Watts

Can you connect 18 gauge wire to 16 gauge?

Yes the 16-gauge will work just fine. Make sure your connections are well insulated.

Can you use 18 gauge wire for 120v?

18 gauge wire is safe to use at low currents. It would be recommended to fuse it though. BUT, doorbell wire is not a safe option at 120 volts. Most likely it is not intended for use above 48 volts.

Can you connect 18 gauge wire to 12 gauge wire?

NO don’t ever mix AWG Wire gauges they are different for a reason and the main reason is amperage. Sure it will work but it’s 100% wrong and the #18 gauge wire becomes a fusable link and potential fire hazard. It would be easier to use the #18 wire to pull #12 wire and make it right.

Can you use 15 amp switch on a 20amp circuit?

You can, in fact, use a 15-amp switch on a 20-amp breaker lighting circuit since the 20-amp rating means that the circuit can handle anything up to 20 amps, so anything lower is alright to use.

What needs a 20 amp circuit?

Large consumers, especially kitchen appliances, such as microwaves, blenders and toasters, need a dedicated 20 amp circuit, to ensure a constant energy flow, which means they cannot share the circuit with other devices.

Can I plug anything into a 20 amp outlet?

You can use a device that has a 15-amp plug with either a 15- or 20-amp receptacle. Standard 15-amp receptacles are suitable for typical household appliances, lamps and other accessories. A 20-amp receptacle is for heavy-duty appliances and power tools, such as air compressors.

What is 20 AWG in MM?


Wire Number (Gauge)A.W.G. or B&S (Inches)A.W.G. Metric (MM)

What is 18 AWG wire used for?

18-gauge are used for low-voltage lighting and lamp cords in 10 amps. 16-gauge are used for light-duty extension cords supporting 13 amps. 14-gauge are usedfor light fixtures, lamps, lighting circuits with 15 amps.

What size wire can handle 30 amps?

A 30-amp circuit breaker requires a minimum of 10-gauge wire for the conductor, according to the American Wire Standard, or AWS. Using a wire larger than 10-gauge on a 30-amp circuit can pose a significant fire and safety risk.

What wire do you use for a 200 amp service?

Installation of 200 amp electrical service needs a #2/0 AWG copper wire or #4/0 AWG for aluminum or copper-clad wire inside a minimum of 1.5 inches, schedule 40 or 80 PVC conduit for underground service. However, 2 or 2.5 inches is recommended if running 3 wires in the same conduit.

Is artistic wire real copper?

Artistic Wire, Copper Craft Wire 18 Gauge Thick, Bare Copper (4 Yard Spool) Real copper wire. Great for practicing wire wrapping technique, perfect for craft projects. Not intended for electronics use.

What is magnet wire used for?

Magnet wire is an insulated copper or aluminum conductor used to wind motors, transformers, generators and any other electrical device where electrical energy is converted to mechanical energy.

What is 24 AWG wire used for?

So, 24AWG cable is ideal for long runs with more potential damage, because it comes with stronger conductors with lower attenuation, while 28AWG slim cable would be more suitable to enable higher density layouts and make it easier for cable management since it helps save space and optimize airflow.

Is higher AWG better?

In general, a lower AWG number is better than higher AWG. AWG is of primary importance for wires that will carry electrical power — for example, home or business electrical wiring, extension cords or high-power wire in automotive or audio use.

What is 22 gauge wire used for?

Here at SparkFun, we typically use 22 AWG wire for prototyping and breadboarding. When using a breadboard or PCB, solid core is perfect because it fits nicely into the holes. For other prototyping/building involving soldering, the stranded core is #1, just be sure not to let too much current run through a single wire.

Does stranded wire carry more current?

Because of the given thickness of stranded wire, i.e., it’s thinner, there are more air gaps and a greater surface area in the individual strands of wire. Therefore, it carries less current than similar solid wires can.

How far can 24V travel?

24V AC Power Max Wire Distance Chart

 24 AWG20 AWG
10 VA (417mA)103 feet286 feet
20 VA (833mA)52 feet142 feet
30 VA (1,250mA)34 feet95 feet
40 VA (1,667mA)26 feet71 feet

How much voltage drop is acceptable?

How Much Voltage Drop is Acceptable? The National Electrical Code says that a voltage drop of 5% at the furthest receptacle in a branch wiring circuit is passable for normal efficiency.

How much voltage drop is acceptable 24V?

The acceptable maximum voltage drop for DC loads is 5% of nominal battery voltage.

How many watts can 20 amps handle?

20-amp 120-volt circuit: 20 amps x 120-volts = 2,400 watts.

How many watts can a 15 amp breaker handle?

On average, a 15 amp breaker can run a one 1K light each without blowing or about 1800 – 2000 watts. The only issue with relying on this formula is that it is advisable to only load a breaker up to 80 percent of its capacity. Overloading a 15 amp breaker can lead to very dangerous situations.

What gauge wire do I need for a 400 watt amp?

What Gauge Wire Do I Need For My Amp?

Wire Gauge SizeTotal Amplifier RMS Wattage
4 AWG400-1000 Watts
6 AWG600-800 Watts
8 AWG200-400 Watts
10 AWG100-200 Watts

How many amps can 14 AWG?

Ideally, a 14 gauge wire can handle 15 amps of electrical current. Unfortunately, this is the only amount of electrical current that a 14 gauge wire can carry safely. Any electrical current running through a 14 gauge wire higher than 15 amps poses a risk of circuit failures and electrical fires.

How much current can a 26 AWG wire carry?

Example: 8 conductors of 26 AWG at 90°C = 5 x 0.7 = 3.5 amperes max, each conductor. Note: For Flat Ribbon configurations with greater than 30 conductors, use 0.5 de-rate factor.

What gauge wire should I use for a 3000 watt amp?

The entire kit is compatible for 4 gauge installation and can handle up to 3000 watts of power. This wiring kit is the tight bond that glues your entire car audio system together, so invest in quality and choose the Q Power Super Flex 4 Gauge 3000 Watt Amplifier Wiring Kit today.

How many amps can 12 AWG handle?

“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”

A Picture of Nam Sun-Hi
Hi, I'm Nam Sun-Hi. My first name means: "One with a joyful demeanor." I'm a Korean student and author at I spend all my time either writing or studying. I love learning new things, and I think that's why I enjoy writing so much - it's a way of learning more about the world around me.