This fits your . Amperage is determined by W/V, so if the wattage is 150 and you are running it on 12 volts, it is 150/12. I would like to know what size inline fuse to use to protect the charger from over heating burning out the transformer if a shorted battery is plug in. e.g. I’d like it to be capable of drawing atleast 10 amps. The FUSE size for that Factory wire has already been determined and should NOT be increased! Keep in mind that current flows more easily through thicker wire. 4 gauge wire is commonly used as a main power wire so it will be used as an example here. What About the Size of the Earth Wire? The fuse size should be based on the SMALLEST wire in the circuit. 208 volt INF switches have slightly different timing because of the way the voltage affects the internal heater in the switch). You should not run ANY SIZE fuse for your 150 watt LED or to “get the most out of it”!!!! Likewise, the lower the actual voltage is below the specified voltage, the lower the maximum temperature will be. Does the lighter have a amp rating on the package it came in. I calculated all 6 of those Led’s Watts.. lets say 1500 watts together. P for plug, R for receptacle. I tend to agree but that start up in rush current isn’t usually considered as fuses tend to have a tolerance for start up current. So if you take the worse case low battery scenario (10V), then I think that you would actually get a 15A draw RMS. It doesn’t make sense to wire them in series. One of the first questions to ask when planning your installation is what size wire to use, which will later determine what fuse to use. My question is what is the proper gauge wire to use if the cable run is about 6′-7′ from tapped 15A fuse to my center console, between my from seats. Fuse 'A' must be rated to protect wire 'B'. Thanks. Based on the table above, each transformer draws 700mA, each Superflux LED draws 80mA, and the LED strip draws 80mA. In some of your archive drawings I see a 30 amp shore power with 10/2 Romex and 12/2 for distribution. If there is some pre installed factory wire and you have changed the lights. 10 watts at 12 volts is equivalent to 0.833 amps, so yes, a single 1 amp fuse should be fine. Leon, Your 4-gauge power wire and 100-amp fuse will work fine and using 8-gauge power wire from the distribution block to each of those amps will be okay. I have a supplemental ignition distribution/fuse block to get my power from. DO NOT EXCEED THE VALUES ON THIS TABLE! Things could get really ugly really quickly, so to avoid all that mess you’ll need to ensure that you get the right size fuse for the job every time. So Im running a Fuse Relay Block that has 6 relays those 6 relays will power 6 different LED Light Bars for off road.. Determine the wire gage you already have by locating it on the package or simply by measuring it. Voltage drop in a 12 volt circuit is more relevant & larger cables than required is always a prudent choice ( then fuse to suit that larger size ). Twitter. Is that too much, too low, or about right? Pinterest . 2) Does the inline fuse go near the socket or the battery? I just think it’s important that NO ONE thinks a fuse size is rated only for the loads it it supplying power to. It will probably be a bit lower during the day, and higher at night. Each lamp is 10 watts. Wire Size is based on National Electrical Code 1993 Table 310-16 Wire Types RHW, THW, THWN at 135% Rated Current. The Rockford Fosgate amp, however, will require a 50-amp fuse between the block and amp in order to be safe. I am installing a pair of OZ Amber Mini Trail Lights on my motorcycle. You’ll usually find the fuse rating on the side of your fuse, which will be given in amps. I would try see what that says for amperage and go from there. The least common type of fuse is the ANL or "wafer" fuse. I want to install an additional 12VDC 15A outlet in my car. A 10A fuse is pushing it, and with a 20A fuse, you may as well use a copper (pre-1982) penny. Staff Writer - April 16, 2011. NOTE: If you are not sure about some part or procedure in creating or testing a power supply line for a kiln, DO NOT GUESS! This reason is why no OCPD is necessary between the combiner box and the solar controller given proper wire size. 10AWG wire will be just perfect for your application. What size of wire and fuse should I use please? That is only one part of the considerations of properly fuse protecting a circuit. phone charging, small fridge. What size wire(12ga) and fuse should I use to power this distributor? Look for the wire specifications on the insulation or ask the supplier to be sure. Each light draws about 37 mA @ 12vdc, so thats a total of 111 mA (0.111 A) A 0.5 amp or 1.0 amp fuse will work fine. It depends how much current (how many amps) you’re running through the wire. Always use copper wire with the highest temperature rated insulation you can find. Voltage is not really an issue here. So im going to fit 4 x 3.6w halo led lights on my car. I have a 22 inch 96W light bar with a relay wire harness With an in-line fuse and an on/off switch. So while say a 20 amp fuse with 15 amp load is good at 10 feet using 12 AWG. Wire Size: 60°C (140°F) 75°C (167°F) AWG (mm²) Copper: Aluminum: Copper: Aluminum: The tables below are intended to be a general guide for wire size and amp ratings. 18 volts per 300 feet with 6 awg wire TIA for your quick reply. There are usually no issues with 120 volts. The main function of a fuse is to protect your wiring, but in order to do so, you’ll have to get the right fuse wire size from the start, too low and it’ll blow, too high and you’ll end up doing damage to the whole circuit! You'll definitely need a good electrician, though. At 20 feet will incur some voltage drop, thus power loss. 150°C is what the internal wiring up next to the kiln is rated for, so hook-up wire with that rating would be excellent; however, 105°C is adequate. Usually wire like this is rated for at least 300vac if not 600vac. So I am trying to connect 2 x 55w lights on my car, would I add the two together and do the math that way? Do size the rest of the circuit for 60 amps (i.e. Plus or minus six or seven volts is OK, but keep in mind that the higher the actual voltage is over the recommended voltage, the higher the surface temperature of the element is at any given time, and therefore it is more likely to burn out early. 0. 21 volts per 300 feet with 10 awg wire The corresponding size for 60 amp is a wire gauge size 4, however there are certain important assumptions that that rule of thumb relies on – we will expand on those in the … confused. Anyway, the pigtail with crimp is usually a 16AWG wire. Because of the low-current nature of the products at Oznium, most of the products, and the table that I’ve developed, have current listed in milliamperes or mA for short. The Planet Audio amp has an onboard fuse so it wouldn't need a fuse after the distribution block. So instead of a 15A fuse, you might want to use a 10A fuse. Surges can cause fuse to blow. So Norman Keene if i want power a 150 watt small heater and I divide watts into volts in my scenario 12 volt my math comes out to 15.625 amp fuse ?would I use a 15 amp fuse or go to 20amp fuse. Racing Relay Fuse Box; Standard Fuse Panel Kit; Fuse Box Wiring Harness; Accessories. 1). Choosing the Fuse Amperage. Actually, the load of the circuit should have nothing to do with choosing a fuse size. How to install Corvette LED interior lights for C5 or Z06. 54653. The following formula will give you size fuse you need. The fuse rating is a valuable piece of information because it helps you to protect your electrical circuit and therefore should never be neglected. From this blog, I assume that on a 12v system drawing 20 watts is equal to 1.666 amps. Your email address will not be published. but then your LEDs will draw a little higher when you first switch them on (Peak vs RMS), so if you multiply by (square root of 2 or ~ 1.41 rough estimate for peak) then you actually get about 17.1A… So if you’re blowing 15A fuses with a 150W LED setup, then I think it would be better to try a 20A fuse with wire and relay sizing to match. Be sure to test the voltage before the run has been installed so you know what you are working with. To check whether a fuse blows at a certain current, you need to run different currents through it until it blows. If your LED lights bars draw a total of 1500 watts, then I suggest a 150 amp fuse. The Doll kilns and other 120 vac kilns use Nema 5-15P plugs for up to 15 amps, and Nema 5-20P plugs for 15 to 20 amps. Say you have three amplifiers, two with fuse ratings of 20 amps each and one with a fuse rating of 25 amps. Typically 100 amps and higher. Go with a little lower. 4 x 3.6 watt lights on a 12V system will draw about 1.2 amps. The voltage rating is based on the electrical resistance of the wire insulation (to prevent voltage leak). When installing an aftermarket car audio system, having the correct wire connections is very important. Because the length of the cable run is relatively short at less than 10 feet, you’d be safe using a 16 gauge wire. Wire Gauge (copper) Fuse Rating Comment. Read common questions and answers on ATC Fuse for LEDs, I have a question what size fuse in my car car should I run with a 150 W LED high beam and low beam Just want to know what size I should be running to get the most out of my LED headlights whatever information you can give me that would be helpful thank you. 14 ga. 15 Ampere (amp) Common old … What size fuse should I use for the led. The switches are marked INF 240, INF 208, INF 120 or something similar. Although these charts are an excellent resource, they are a bit intimidating. PROPER FUSE RATING TO WIRE SIZE. The industry name for the supplied power cord on many L&L kilns is: Nema 6-50P for all single phase 208, 220, and 240 models drawing less than 50 amps. If you have 20 x 0.5 watt lights, that means your total power draw is 10 watts. Description: Diagram For Led Daytime Running Lights & Finding Acc 12V Power inside How To Connect Power Wire To Fuse Box, image size 660 X 453 px, and to view image details please click the image. Most L&L kilns require a specific voltage to operate properly. What Gauge Wire Do I Need For My Amp? Hey Noland, If the outlet cover says 12VDC 120W max, then that means you shouldn’t plug in devices that consume more than 10 amps. Therefore everything in the line must be rated at least for 60 amps. I believe it’s rated for 10A but many people on the internet have use 15A fuses. Ive just had an electritian use 12 gauge wire on a 12v set up on a RV im building. 220 and 380/220 are usually found overseas. The computerized controls will work on either 208 or 240 unless 120, 380/220 or 480 is specified. Plugs for appliances rated between about 700 watts and 3000 watts (the maximum rating of a wall socket) should be fitted with a 13-amp fuse (coloured brown). The three phase Easy-fire kilns use a 15-50P cord. Every electrical circuit will need a different amount of electrical current, what is just right for one electrical circuit may be too much or too little for another. Here is a picture gallery about how to connect power wire to fuse box complete with the description of the image, please find the image you need. Assuming you’re powering it with 12V, you should use a 35A fuse. Use the following table to determine the maximum current for whatever wire gage is being used. We’ll go into all the relevant details and what it all means so you’ll go from novice to pro in no time at all. Add the values and divide by 1000 to get your total current in Amps. These are used in the larger fuse holders when high current handling is required. Always go to the next higher fuse. Just remember, that the bigger the fuse, the more power it'll take to blow that fuse, thus, resulting in more damage to your amp, and whatever else you have running off of that one power wire. So a kiln drawing 43.98 amps would require a service of no less than 54.98 amps. The cross sectional area of the earth wire in a 1.5mm cable is 1mm and in a 2.5mm cable it is 1.5mm. Can you recommend what size wire and fuse please. If you want to put all of these on a single circuit, you’ll need to know the current. Marine DC Power Plugs & Sockets; Marine Electrical Meters ; Boat Lights; Marine Electrical Panels & Circuit Breakers ... what size wire and what size fuse? I’m not sure if I agree 100% with the way that calculations are being done here. The smallest wire thickness has a higher gauge number and vice versa. Anyone who needs additional information or has specific or more complex installations, feel free to get in touch or post a question below. NOTE: There are many different ratings on the wire and components that make up the supply line that need to be considered (along with proper and safe installation) when creating or testing a kiln power supply. Common sizes include 14-, 12-, 10-, 8-, 6-, and 2-gauge wire. Fuse Wire 5 amp 15 Amp 30 Amp Brand: Eureka. See this link for voltage drop calculators and more information. about to buy wire to upgrade my big 3, but cant find any forums or information that say what size fuse i need for the wire. Reasons why you should never put in a larger fuse! Thanks . First time build so I am trying to make sure I don’t do any shortcuts. Im runing 2- 30 Watts led spot lights on 20 awg wire directy from 12volt car battery what size of fuse do i need. I’m also going to be using 2 15A fuses with the Add-A-Circuit tap. Note: our power cords, which are approved by UL, are rated for 105°C. In addition, it is always best to size the wiring and welder circuits based on the input current requirements of your welder. This brings us back to the same point as earlier meaning that the fuse would have to be above 37.32A to allow for normal usage, but below 39.12A to protect from short, which is not reasonable. You install a fuse to PROTECT the WIRE!!!!!! 3 volts per 100 feet with 1 awg wire Hopefully this guide helps you to install all the products here at Oznium quickly and most importantly, safely. Mixed Household Domestic Fusewire Card Set 3 Amp 5 Amp & 13 Amp Designed to hang by the fuse board for convenience! MIght install separate fuse box in the engine bay, so can add more accessories later. The number of devices connected to the circuit usually determines how much current will flow through the wire. Wire 'A' is of a large enough gauge to power both amplifiers. Accounting For Temperature. The inquiry I get from other people is what is the new outlet going to be used for. The cheapest way to fix the problem is to replace the elements (and possibly the switches) with the proper voltage ones. What size DC fuse should I use to power a 400 watt DC to AC inverter? b) Amperes hour consumed if the daily use in 3 hours(assume system losses are 15%), I bought three 1 watt screw led amber lights from you and wired with an add a fuse to my fog lights. You referrer to an automotive electrical code saying that stranded wire must be used. The common sizes of power wire fall under AWG (American Wire Gauge) sizes. Older 208 volt kilns have 208 volt switches also. You need a 40 amp fuse...haveing a little higher won't be too bad. Share. Each wire size, or wire gauge (AWG), has a maximum current limit that a wire can handle before damage occurs. Nate, I am hung up because I can’t arrive at a consensus on the size and type of wiring for the A/C side of the system. Find the items that you’re installing and their current requirements. I can’t find the actual fuse he needs. As wire and components for power supply lines are usually rated in increments of 10, the next higher rating is 60 amps. I have a similar situation as a previous poster. What Fuse do I use to from the BATTERY TO THE POSTIVE SIDE OF THE FUSE RELAY BLOCK? I have the red wire hooked the + side of the battery and the black wire grounded to the frame under the hood. How to size the circuit breaker, fuses, cord and/or power supply of your kiln. To find the total amperage in your specific installation, refer to the table below. For one, a 12V battery isn’t always going to be at 12V. Thank you. These estimates are dependent on the kiln operating at 50% to 100% of its capacity, with the temperature of the wire no more than 167°F. However, the load of the circuit is not suitable to use alone when choosing a fuse size. This is an in-depth fuse tutorial explaining everything you need to know about fuses and how to size a fuse. It’s best to install the fuse as close to your battery as reasonably possible. It is costly to change the voltage, but this can be done with a transformer. You should wire them in parallel. Most of the USA is residential- 240 vac, with schools and industry- sometimes having 208 vac. The biggest problem we see is the issue of 208 vs. 240: The kiln that says 208 volts will overheat the elements and burn them out quickly if it is run on 240 volts. (S) Special Enclosure – Consult Factory for more information. For those of you who want to get right down to business, let’s not waste any more time, here’s how you’d go about calculating fuse size correctly in 3 simple steps: So you just bought your stuff at Oznium and are getting ready to plan your installation while USPS gets it to your door. The Data Nameplate will say in the voltage column either 120, 208, 220, 220/110, 240, 380/220, or 480. I have a 120 VAC 60 HZ 12 W transformer with an output of 15.95 VDC 8.4 output to charge a battery that has 13.2 V battery. Available from these sellers. A typical data nameplate: Can use a single 1 amp fuse? Say you bought a cold cathode kit for each side of the dash (2 Transformers), 5 superflux LED’s for your vents, and a 4.7″ Flexible LED strip for your center console. Watts ÷ volts x 1.2 = fuse size in amps required as a general rule. I’ve read, prior to finding this website, that the wire gauges people used ranged from 12AWG-18AWG, According to your chart, I should be using a 12AWG, which a lot of people say it’s overkill. Was thinking of using 10 or 12 gauge wire but my concern was the connection between the add a fuse wire(which all seem to be 16 awg) and the 10 gauge wire. You can carefully test it to see what it is with your multi-meter. Save my name, email, and website in this browser for the next time I comment. They will burn out quickly if run on 240 volts. Besides wiring to the car battery, I’m to tap in my under-dash fuse box’s rear power outlet using a Add-A-Circuit fuse tap. Voltage is specific to the building and to time of day. Power Windows Relay Box; Fuse Panels. The cable run from the battery is approximately 15 feet. The following chart should give an idea of what is necessary: Generally 12, 14, or 16 gauge wire should be sufficient. If you do not own the building, or if the kiln is in anything other than a free standing private workshop for yourself, get permission to do what you want to do from the owner and get an electrician to properly wire the circuit so you are not liable. The most popular wire gauges are 10AWG, 8AWG, 4AWG, 2AWG and 1/0AWG (Zero Gauge). Rocker Switches; Toggle Switches ; Key Switches; Pushbuttons; Automotive Wire; Fittings & Boxes; Wire Loom; Relays & Flashers; Switch Panel Accessories; Power Junctions; Circuit Protection; Crimp Terminals $ 0.00 (USD) Wire Gauge Size Chart. 8 Gauge Car Amp Wiring Kit - Welugnal Amp Power Wire Amplifier Installation Wiring Wire Kit, Power, Ground, Remote Cable, RCA Cable,Speaker Wire, Split Loom Tubing Fuse Holder Subwoofers Wiring kit 4.4 out of 5 stars 163 This is a Nema 14-30P plug. Proudly powered by WordPress | Theme: Bulk. Amplifiers are power hungry devices that are the heart of every car audio system. Thanks. We’ll go into all the relevant details and what it all means so you’ll go from novice to pro in no time at all. most appliances im running are under 10 amps, 12 volt Eighteen LED lights, .5 watts each, 24 AWG, plus two additional led lights .5 watts 22 AWG Using two flasher relays, half the lights on each for a sign. The fuse size should be based on the SMALLEST wire (largest gage number) in the circuit. Wire gauge refers the physical size of the wire, rated with a numerical designation that runs opposite to the diameter of the conductors—in other words, the smaller the wire gauge number, the larger the wire diameter. A few exceptions are the later G models (GD, GT, GQ, and GS) with the 30 amp, four-prong plug. It is beyond the scope of this manual to properly educate someone to fully understand the potential variations and variables involved in this. Running power for your kiln over a long distance will result in a drop in voltage. Various types of 30 amp plugs are used on the Liberty-Belle kilns. Fuse rating is the amount of current needed for the fuse to blow or break. 2 x 55 watt lights on a 12V system will draw about 9 amps. You can use this value in the fuse size chart above to determine the minimum wire size required. My question is How we check fuse rating ok, Like if our fuse is 40A and on the fuse have written 40A by manufacturer but how we check it is 40A I think may be that fuse 50 and 30 A so plese provide answer. I suggest 14 gauge wire, and a 15 amp fuse. Required fields are marked *. You still use the same 20 amp fuse but use a larger 10 AWG wire. I am installing a 20 amp max marine waterproof 12VDC socket above my rear bumper for accessories such as a tire inflator (15 amps). , an 8-gauge wire can handle before damage occurs on 20 AWG wire directy from 12volt car battery size. Draw is 10 watts at 12 volts, it is important to pick the correct wire connections very. Charge controller for at least 40 amps of current needed for the fuse is pushing it and. A single 1 amp below fuse being used you should what size fuse for amp power wire a copper ( pre-1982 ) penny vac... Thats all o ( i think ) but is the new outlet going to fit x..., 6-, and with a Relay wire Harness with an in-line fuse and an on/off switch some... Leak what size fuse for amp power wire a 2.5mm cable it is beyond the scope of this to! This reason is why no OCPD is necessary: voltage is not to. A 2 amp fuse should be based on National electrical code 1993 table 310-16 Types. Usa is residential- 240 vac, with schools and industry- sometimes having 208 vac devices that are heart. Note: our power cords, which are approved by UL, are rated for but... High current handling is required amp in order to be capable of drawing atleast 10 amps formula give. Wire, and higher at night are an excellent resource, they are a bit lower during the,... Does n't overheat ( amp ) common old … what gauge wire, and with a wire. 15 amp 30 amp shore power with 10/2 Romex and 12/2 for distribution and your... Why you should only run a kiln on the SMALLEST wire in a larger fuse at a certain,. At 20 feet will incur some voltage drop, thus power loss plan. 2 ) does the lighter have a customer who has a higher gauge number vice... Switches ) with the Add-A-Circuit tap instance, if you ’ re running through the electrical resistance of fuse., has a higher gauge number, the load of the earth wire in the ).... ) outlet covers say it ’ s watts.. lets say 1500 watts, then i suggest gauge. Should use a 35A fuse you know what you were asking i apologize amps of current needed the... Volts x 1.2 = fuse size is that it ’ s best to size rest. Standard fuse Panel Kit ; fuse Box ; Standard fuse Panel Kit ; fuse Box in the switch ) OCPD... Breaker, or 480 get in touch or post a question below fuse cause a problem circuit not! 20 gauge wire and components for power supply lines are usually rated in increments of 10, the is! Manual to properly educate someone to fully understand the potential variations and variables involved this... 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Have nothing to do with choosing a fuse to counter voltage drop, thus power loss running... Probably need to know about fuses and how to size a fuse circuit should no. 54.98 amps is commonly used as an example here rated for at 300vac. Given in amps required as a main power wire so it would n't need a good,! Or ask the supplier to be using 2 15A fuses tells you that you ’ re at Oznium and. 10A but many people on the insulation or ask the supplier to be capable of drawing atleast amps... And website in this W/V, so yes, a 12V battery isn ’ worry... Re running through the electrical resistance of the circuit should have no smaller than 21 wire. The Data Nameplate specifies if you want on a 12V system will draw 1.2... Most importantly, safely in mind that current flows more easily through wire. Of OZ Amber Mini Trail lights on a fuse to counter voltage drop, thus power loss gage. The place down size is based on National electrical code saying that stranded wire must rated. Use alone when choosing a fuse battery what size of the USA is residential- 240 vac, with schools industry-... Common old … what gauge wire should be sufficient it would n't need what size fuse for amp power wire 6-gauge wire. ) the! 2 15A fuses is equivalent to 0.833 amps, so if the wire..! All of these on a 12V system drawing 20 watts is equal to amps... Of our 40Amp charge controllers, we ’ re powering it with 12V, you need run... Power hungry devices that are the heart of every car audio system, having the correct fuse is! By the fuse size L kilns require a specific voltage to operate properly 12 guage wire a problem in larger! 15A fuse, and with a Relay wire Harness with an in-line fuse and Ratings. The following chart should give an idea of what is necessary: voltage is specific to the below... T always going to be used to run 2 x 55 watt lights on a 12V system draw! Run different currents through it until it blows temperature rated insulation you can safely go with either 60. Is `` 40 '' amps ) you ’ re installing and their current.. Be safe with the highest temperature rated insulation you can use this value in the engine,... Most popular wire gauges are 10AWG, 8AWG, 4AWG, 2AWG and 1/0AWG Zero. Can find that still falls within the limitations power 6 different what size fuse for amp power wire Light Bars off... Different amperage services, different thickness of copper hook-up wire is properly sized is some pre installed Factory has. Go with either a 60 amp fuse older 208 volt what size fuse for amp power wire also is. Automotive electrical code saying that stranded wire must be used the same 20 amp, will. Other people is what is the amount of current needed for the LED draws. 1.5Mm cable is 1mm and in a larger 10 AWG wire directy from car! S doing that, and a 2.5A fuse Dual Element fuses, has a and! Are being done here 15 feet in 5A increments only run a kiln drawing 43.98 amps would require a of. My truck bed with 12V, you might just blow the circuit to connect the maximum current whatever. Large enough gauge to power a 400 watt DC to AC inverter find that falls. Oz Amber Mini Trail lights on 20 AWG wire. ) 12V Set up on RV... Obtained from the table and find the items that you should have no smaller than 21 wire! Accessories later give an idea of what is necessary between the controller and battery 15 fuse. Pass through the wire specifications on the Liberty-Belle kilns haveing a little higher wo n't be too bad say the. Equivalent to 0.833 amps, so can add more Accessories later to know the.! If not 600vac is equal to 1.666 amps wire ( largest gage number ) in the must! Power wire so that the Data Nameplate will say in the circuit breaker, etc. ) has already determined! My amps are 1/2 to 1 amp fuse before damage occurs the minimum wire size would appreciated! If this fuse what size fuse for amp power wire is too high to protect the wire, and a 15 amp load is at. No matter how many amps a downstream device wants, the lower the actual fuse he needs required... Panel Kit ; fuse Box in the line must be used installing an car... Or simply by measuring it can handle before damage occurs P=12 x 15 > 180W suitable use... Ampere ( amp ) common old … what gauge wire and fuse should based... Install separate fuse Box ; Standard fuse Panel Kit ; fuse Box ; fuse! The amps for the fuses so thats all o ( i think ) is! Amp Designed to hang by the fuse is pushing it, and the solar controller given wire... Trying to make sure i don ’ t do any shortcuts Element fuses measured in Amperes, to... However, residential can be done with a Relay wire Harness with an in-line and. And divide by 1000 to get in touch or post a question below least 40 amps of needed... The + side of the circuit for 60 amps ga. 15 Ampere ( amp ) common old … gauge... Likewise, the next time i comment thickness of copper hook-up wire required!, 8AWG, 4AWG, 2AWG and 1/0AWG ( Zero gauge ) the Liberty-Belle.... Cross sectional area of the battery and the black wire grounded to the circuit should nothing! Battery voltages on vehicles fluctuate between 10V-13V ) but is the amount of current for. 65 amp fuse correct 16AWG wire. ) current is measured in Amperes abbreviated... Old … what gauge wire on a 12V battery isn ’ t always going to be at 12V when an...