Thank You for Watching my Proper Fuse & Wiring Sizing video! Subscribe To This RUclips Channel: ruclips.net/user/4g63mightymax See My Wiring Playlist: ruclips.net/p/PLsF7T1tRFy2hmiiUUfMZNyV-BUA_yrPIh
it's really easy if there is a consumption of 6 amps, for example you need to use a fuse of 7 amps etc. to find the ampere consumption you divide watts by volts and you get amps
You could make a LOT of money by creating a course on wiring. You are unbelievably good at explaining things clearly, and making it super interesting to learn. This is a super power sir. If you are unaware that you have that super power. You should use it. :)
Haha 😂 Thank you! Why would I want a lot of money when I can give away the information for FREE! lol JK! I have considered that. But really my goal here is to share what I know and help people keep their old cars and trucks going. I love automotive history, so if I can help keep a few more old cars on the road, I’m a happy guy.
I’m glad you found it helpful! You may also like some of my other wiring videos. Here is my personal favorite that took me forever to make. ruclips.net/video/Yz9kqxWkoHI/видео.htmlsi=Cxdwrh1KQxeEmrKD
Thank you so much for sharing this info with us, the working men. I really need to learn all this in order to work on my 30 years old car. It was fun to watch you were blowing all those fuses, and you're an awesome teacher. Thanks again.
Im glad you are finding the wiring videos helpful, and I really appreciate your kind comment about my teaching style. I was a horrible student and I think it was because I learned differently than others. So I’m trying to teach in a way that I would have wanted to learn. Good luck with your project!
@@WiringRescueneed you to do one on interior light like the done light that turn off when door closes and come on when doors open, and need you to make one on reverse lights, would be very appreciative
Thank you for your headlight example!! I’m working on a 1968 Galaxie and I have two 40watt par46 sealed beams that I installed to flash in the rear window like an old police car and you answered exactly what I needed to know!
Good info , love it. I have wired fog lights before but never calculated amps. Used relay and 14 gauge wires. no problems so far. I will do the math next time. Thanks.
Excellent! I’m glad you enjoyed the video. Calculating the amperage may also save you some money with the price of copper wire being so high at the moment! Also oversizing the wire slightly is always nice fire insurance. ;). Good luck on your next project!
hey man i've been on your channel whole night saying to my self how didn't i come up with this channel when i started to try learning basics of wiring. your amazing man thanks alot !
That’s extremely kind! Thanks for watching the videos! Stay tuned in, I am working on a really good one right now that I hope I can have done in the next few days. Maybe my best yet?! Fingers crossed!
@@WiringRescue can't be kind enough bro your sharing gold information with alot of effort put into to be so much clear to dummies like me and even to props also. thanks for reminding me to sub, i just did. GL for the next one !
Legit, you just made this so clear to me. Ive always been good at and loved math but my electronics teacher made class so boring and uninteresting. Really considering switching trades and getting into electrical to save my body long term hahah
That’s awesome! Thanks for the kind words! I always try to make the videos in a way that I would have wanted to learn, and it seems that is a great method for people like me! Thanks for watching and good luck on whatever direction life takes you!
Thanks for this video. Finally someone who knows what they are talking about ! I have a newer 1500-watt inverter, which I had been using fine for months. I accidentally shorted it out. Opened it. Found 4 x 30a fuses in there. I saw the first in line was blown. So... easy. I replaced it. But I didn't have a 30a large blade, so I replaced with a 40a large blade. No problem, it is a little bigger so won't blow as fast as a 30, but still small enough that it will blow if it needs to. BUT... it blew! right away. With only about 650 watts device on it. Put in another 40a, which also blew. Put in another 40 and using the inverter now for only charging small, low amp devices while I figure this out, which seems to be working fine, but waste of a huge inverter like this. Is something else wrong inside there that the short caused and that is why it keeps blowing? Or is the 40a blowing where a new 30a would not?? It seems the 40a would blow LAST instead of first, inline with all the other 30s... Mmmmm
i really appreciate this video i actually listened and learned a lot, we’re doing this in my physics class and i never pay attention in that class but for some reason i payed attention because you have a a body aswell 😂
It’s way better to use these theories in real life than imagine them. For about $20, you can get a pile of random electrical stuff to play with. I highly recommend it! It’s great education!
Good info, I recently ran across your videos, my question is how do you find out what a device, like a fan motor, draws as far as amps? I'm trying to use a pair of cooling fans from a donor car. I have tested them separately. But when they are turned on together it will draw more amps. Suggestions?
I am from Egypt and i keep watching your vidoes Keep on Man ,, you are doing the best vidoes in world Can you make video for wiring Gps tracker with eninge Cutoff relay ,, causr thieves so high here If you read my comment wiill be happy of small reply
If you use 12 volts instead of 13.5, you get 6.666666 amps. You should probably use that measurement because it will give you higher amperage. Therefore, it may require, in some instances, larger wire/fuses
thank you very much. My radar detector did not work in sudden, i thought RJ11 wire cable was too old (10 years setup, using on my 3rd car now). so I bought the entire hardwire kit from Amazon. My old hardwire setup: 7.5AMP bladefuses with fuse adapter + Glass Fuse 1 Amp 250v. Before I change to new hardwire kit, I realized that old table burned my Glass Fuse 1 Amp 250v. So I replaced the glass fuse 1amp (new from new hardwire kit - there are extra in my new hardwire kit), radar detector work again, it only work again like few mins, but new Glass Fuse 1 Amp 250v burned out again. I don't know why?????????? Now I changed the whole setup to new hardwire kit. its 3 AMP bladefuses with Fuse adapter + 1 Glass Fuse 1 Amp 250v (same fuse but new) . It looks fine, but I'm not sure why my old hardwire kit burned out two * Glass fuse 1AMP (first glass fuse used for 10 years), and second glass fuse (new - only use for 2 mins) Do you know what is the problem? Do you have any idea? please thank you! BTW thank you for your information, I have learned about gauge + watt + AMP thing, that is really helpful and great example idea. I wish u 100k sub soon. ** The power is coming from accessory empty spot in car fuse box** **Fuse adapter i only put 1 bladefuse on top one** Since that is empty fuse spot, so i did not put 2 bladefuse on fuse adapter. my new wire kit: 13FT RJ11 Style Radar Detector Hardwire Kit,Quick Connection Plug and Play Cord Cable Set (i don't want to share amazon link and affect your channel)
But you got to remember it draws more when it first turns on . So use a 10Amp fuse. 2x55 watt bulbs 15 Amp fuse 2x100 watt H3 bulbs 20 to 25 Amp fuse. But that was a grate video.
I've read the fuse margin to be 1.25x then pick the next size up. So, 5.92A X 1.25 = 7.4A, so 7.5A is fine. It might be you skip to the slightly bigger fuse than just enough but it should cope with spikes etc a bit better than just the next one up. It's better to err up just a fraction on the wiring anyway, especially on a longer run or if marginal and the fuse is there to protect the wiring, I think.
I have a fusible link for my alternator/fuse block that keeps blowing. The alternator is a 60amp. Not sure what size fusible link is on it now. Wanted to switch to maxi fuse. Will a 60 amp do the job or should I go higher ?
If I were to have a wire leading to multiple other lights. Say one wire to a bus bar and then separate wires to each light do I only need to account for the amps per light on each individual strand, and then the combined amps from the bus bar to the battery?
I'm good with residential and automotive wiring, but like how do you figure out what relay to use when wiring a car when ever I had to fix something n if it was the relay I would just replace it with the same but for wiring a car from scratch how would I figure out what relay to use 🤔
Hi, I keep blowing 30A inline fuses from battery to relay to satart the car all new 8 gauge wiring, I dont know what the starter amperage is for starting, if I go to 40 amp or greater which nmeans I have to increase the wire gauge may up to 4 gauge, what do you think.
I have a 2013 ford fiesta se, I’m installing an aftermarket radio in it. Unfortunately the car doesn’t have an accessory wire so I can’t seem to get the new radio to turn on when I turn the car on. I need to tap into an accessory fuse. My question is what size fuse should I use and should the fuse tap have an extra fuse unit. Alas what site wire should I use. Thanks
Okay so if I have a starter that I want to put a Mega Fuse on. What size would I need if the vehicle requires 585CCA (cold cranking amps)? 600A Mega Fuse? What about using a MRBF terminal fuse right on the starter. So if it blows, it won't arc anything but the fuse.
Is the 80 watts for the seal beams when they are hot as the heat changes the resistance of a bulb which will change the amps eg. A light cold might be .5 ohms and light hot might be 3 ohms which will change the amps
Very true! So it’s always good to look at the factory ratings for any kind of electrical item that is added to a car. Some amperage draws at start up can be very surprising. Thank you for watching and sharing that info!
What voltage is your power supply set to to burn thru the wire ? Basically if i use nice and thick wire together with smaller rated fuse that’s the safest for a tap ?
I installed a wolo horn on my 2022 Corolla Cross. I just hooked in to the previous wires. It worked at first, but now it blows a 10amp fuse. Will I have to go the relay route? And if I go to the fuse box for power, will it turn off with the car?
This is my first time learning about a wolo horn, but it looks like they recommend a relay in this diagram addonaccessories.net/media/wysiwyg/419-519.pdf
There are electrical meters that you can use to test actual amperage load. For the meters you can buy at your local auto parts store, they usually have a limit of wither 10 A or 20A that they can test. I'd get the one that tests up to 20A. If it exceeds that, then the other type of meter is a clamp on, loop ammeter. They can go much higher since the current isn't running through the device. Setup the device in a test circuit on your work bench with a car battery, 12V DC power supply or a battery charger as the power source.
I don’t know how the heck you tube knew that i was going to attempt to start wiring my custom golf cart today???? But i guess some miracle took place and put your video ‘s on my phone this morning without me searching anything. Feeling better now that a fire will not engulf the cart after I’m done. Thanks so much for sharing your wealth of knowledge.
what about connecting two different gauge wires like a 12 gauge to a 16 gauge? I have auxiliary light with a connector that's 16 gauge and I have a wire harness that is 12 gauge The light produce 1.14amp
You would have to do your measurements based on the 16 gauge wire, because it’s the smallest in the circuit. 1.14 amps is not much though, if you look at the chart I have linked in the video description, you can see how many amps a 16 gauge can handle.
In your headlight scenario, the amperage load has determined that you require a 7.5 amp fuse and the minimum wire size required is 16 gauge. If I happen to have a large spool of 14 gauge or 12 gauge wire available, can I use those larger gauge wires in this scenario? If the larger wires are used, does the amperage of the fuse required change? I happen to have 7,000 ft. of 12 gauge copper stranded wire. lol.
@@WiringRescue Thanks. I've had trouble finding an answer to this question. Everyone just warns against downsizing wire sizes. I know people do "The Big Three" wiring upgrade, that up-sizes the battery/starter/alternator wiring, without changing the fuse specs.
Assuming you aren’t building something really weird, the fuse should be in the power wire as close to the battery (or power source) as possible. Here is why - Imagine your car’s chassis is grounded to the battery (as it should be). Any power wire coming off the battery has the potential to touch any part of the chassis and cause a short to ground (Fire!) So if you have a power wiring coming off of your battery, going to an accessory (maybe a fuel pump for example), and then have the fuse in the ground side of the fuel pump circuit instead of the power wire, you will still have this super long power wire coming off your battery that could accidentally ground out in your chassis and cause a fire. If the fuse is on, or super close to, the battery, in the power wire, then the entire circuit is protected.
HI jeramy, i like your electricalwirirng circuits, my prioblem is that i amworking on my classic volvo p1800, 1971 model. i bought a set of four led rear covette c5 tailamps, but i am not sure how to wire them, i need your help to provide me with a circuit diagrame. thank you
so let’s see i have a pair of led lights that don’t tell me how many amps they are it just says “240w/pair” i’m assuming if i do the math 240/13.5=17.78 so that means i need a 20 amp fuse and 20 amp relay to run them safely? i checked the actual amp draw by hooking up the lights to a spare battery and putting my volt meter on DCA10 and putting my meter inline to complete the circuit and it was drawing 3.77 amps. confused and don’t wanna burn my car down lol
There is a chart linked in the video description. Check out the chart and it will tell you the wire size that is appropriate for each amperage based on the length.
Also worth noting that the total length of the circuit is BOTH the 12V positive supply wire plus the length of the ground wire. If your ground wire is super short AND is connected to a clean, (not rusty or corroded or painted) ground point on the chassis then you don't need to include it in the total wire length. But do make sure all of your chassis components are all grounded together with excellent connections and cable. I'd use an old wire or string to actually route the path of the wiring then measure the total length. It is surprising how many feet it takes to route it neatly and out of the way.
Thank You for Watching my Proper Fuse & Wiring Sizing video!
Subscribe To This RUclips Channel: ruclips.net/user/4g63mightymax
See My Wiring Playlist: ruclips.net/p/PLsF7T1tRFy2hmiiUUfMZNyV-BUA_yrPIh
it's really easy if there is a consumption of 6 amps, for example you need to use a fuse of 7 amps etc. to find the ampere consumption you divide watts by volts and you get amps
You could make a LOT of money by creating a course on wiring. You are unbelievably good at explaining things clearly, and making it super interesting to learn. This is a super power sir. If you are unaware that you have that super power. You should use it. :)
Haha 😂 Thank you! Why would I want a lot of money when I can give away the information for FREE! lol JK! I have considered that. But really my goal here is to share what I know and help people keep their old cars and trucks going. I love automotive history, so if I can help keep a few more old cars on the road, I’m a happy guy.
Finally, an automotive wiring video where my brain didn't short out. Huge thanks !!
Awesome! I’m glad you enjoyed it! Check out my wiring playlist if you want to take it up a notch! Lots more good stuff ahead!
@@WiringRescue Absolutely 🙂
What a GREAT, easy to understand, educational video! I learned more from watching this than any other video I've seen in months. Thank you SO much!!!
I’m glad you found it helpful! You may also like some of my other wiring videos. Here is my personal favorite that took me forever to make. ruclips.net/video/Yz9kqxWkoHI/видео.htmlsi=Cxdwrh1KQxeEmrKD
@@WiringRescue I enjoyed this video so much, I will be thrilled to watch your other ones. I immediately liked and subscribed.
Thank you so much for sharing this info with us, the working men.
I really need to learn all this in order to work on my 30 years old car. It was fun to watch you were blowing all those fuses, and you're an awesome teacher.
Thanks again.
Im glad you are finding the wiring videos helpful, and I really appreciate your kind comment about my teaching style. I was a horrible student and I think it was because I learned differently than others. So I’m trying to teach in a way that I would have wanted to learn. Good luck with your project!
You are a genius man, may GOD BLESS YOU!
Haha! Just trying to help people fix their cars, that’s all. Glad you enjoyed it. I have tons more if you are bored!
@@WiringRescueneed you to do one on interior light like the done light that turn off when door closes and come on when doors open, and need you to make one on reverse lights, would be very appreciative
Awesome explanation. Thanks dude!
You’re welcome! I’m glad you enjoyed it. If you’re bored - check out my other wiring videos too!
Couldn't be more clear and straight forward. Thank you 👍💪
Thank you for your headlight example!! I’m working on a 1968 Galaxie and I have two 40watt par46 sealed beams that I installed to flash in the rear window like an old police car and you answered exactly what I needed to know!
You are quite knowledgeable in the area of automotive wiring. Thanks for ALL of your videos!
Thanks! I’m glad you are enjoying them!
This video is underrated for sure!! Well done! 👍🏻
Thank you! I appreciate it!
Absolutely, straight to the point and clear to understand
Thank you for watching! I’m glad you liked the video!
This video just broke down the subject perfectly thank you
Excellent! I am glad you found it useful! Thanks for watching!
SO GLAD I FOUND YOUR PAGE!!!! AWESOME VIDEOS!!! SUPER HELPFUL, VERY PRECISE, NO BS VIDEO!!!! KEEP EM COMING!!!!
If you keep watching, I’ll keep making them!
Good info , love it. I have wired fog lights before but never calculated amps. Used relay and 14 gauge wires. no problems so far. I will do the math next time. Thanks.
Excellent! I’m glad you enjoyed the video. Calculating the amperage may also save you some money with the price of copper wire being so high at the moment! Also oversizing the wire slightly is always nice fire insurance. ;). Good luck on your next project!
Awesome job on your How-To videos! Best I've seen!
Thank you! I really appreciate it!
Good video. I always size the wire to handle the load, then size the fuse to protect the wire.
I completely agree! Thanks for watching the video!
You are a good teacher
Great video. Very informative.
Glad you enjoyed it!
Wow,excellent tutorial
hey man i've been on your channel whole night saying to my self how didn't i come up with this channel when i started to try learning basics of wiring. your amazing man thanks alot !
That’s extremely kind! Thanks for watching the videos! Stay tuned in, I am working on a really good one right now that I hope I can have done in the next few days. Maybe my best yet?! Fingers crossed!
@@WiringRescue can't be kind enough bro your sharing gold information with alot of effort put into to be so much clear to dummies like me and even to props also. thanks for reminding me to sub, i just did. GL for the next one !
@@betsalelinbar1924 - thank you!
Such a good, clear video. Good explanation
Thank you! I really appreciate that!
You are living legend, thank you
Lol. #Goalachieved! Tell your friends to subscribe too! Thanks a bunch for watching!
Great Job and EXCELLENT presentation! I like the linked chart and calculator! Very useful tools! I will be using both.
Excellent! I am so happy that people find these videos useful! Thanks for watching!
Outstanding
More of this mr rm, more
awesome video for those of us not so electricity tuned thanks
Thank you! I’m glad you liked it! If you find yourself bored, I’ve got lots more!
Hi Jeremy you are so great and patience
Awesome tutorials 🙌🏾
Legit, you just made this so clear to me. Ive always been good at and loved math but my electronics teacher made class so boring and uninteresting. Really considering switching trades and getting into electrical to save my body long term hahah
That’s awesome! Thanks for the kind words! I always try to make the videos in a way that I would have wanted to learn, and it seems that is a great method for people like me! Thanks for watching and good luck on whatever direction life takes you!
GREAT JOB SIR - THANK YOU FOR THE CHART LINK
You’re welcome! Glad you liked it!
thanks once more very informative Two thumbs up
Glad you enjoyed it! Thanks for watching!
thanks dude , be bless
Thanks brother your explanation 🎉🎉🎉
Very good info. Thank you.
Thank you for watching!
Awesome Video. Thanks for sharing your knowledge! it really helped me
Thank you for watching! I appreciate you!
Wow this is Great Information I enjoyed it. This is good stuff to know.
Excellent! Thanks for watching!
Thanks again for the information
You’re very welcome! I’m glad you enjoyed it!
BOOM! Pun intended, awesome, well explained video. Cheers mate.
Excellent! This is actually one of the videos that I most enjoyed making, so it makes me happy knowing other people like it too!
Great video explanation 👏🏼
Thank you! I really appreciate it!
Thanks for this video. Finally someone who knows what they are talking about !
I have a newer 1500-watt inverter, which I had been using fine for months. I accidentally shorted it out. Opened it. Found 4 x 30a fuses in there. I saw the first in line was blown. So... easy. I replaced it. But I didn't have a 30a large blade, so I replaced with a 40a large blade. No problem, it is a little bigger so won't blow as fast as a 30, but still small enough that it will blow if it needs to.
BUT... it blew! right away. With only about 650 watts device on it.
Put in another 40a, which also blew.
Put in another 40 and using the inverter now for only charging small, low amp devices while I figure this out, which seems to be working fine, but waste of a huge inverter like this. Is something else wrong inside there that the short caused and that is why it keeps blowing? Or is the 40a blowing where a new 30a would not?? It seems the 40a would blow LAST instead of first, inline with all the other 30s...
Mmmmm
Much appreciated :)
Nice video.Thank you.
Thank you ! I appreciate it!
Great Job. Subscribed.
Thanks! I appreciate that!
Please do video on six volt pos ground to 12 volt neg ground conversion!! Thanks ! Your videos are gr8
Awsome just awsome 👌
Thank you! I’m glad you liked it!
Great video
Thank you! I’m glad you enjoyed it!
Helpful ❤❤❤
Thank you! I appreciate you taking the time to watch!
Thanks that's amazing great video channel nice ideas I like it
Thank you for watching! I appreciate it!
Thanks
You’re Welcome!
Blowin fuses like the Fourth of July
You’ve got it. I popped a lot of fuses to make this video. It was pretty darn fun to be honest!
i really appreciate this video i actually listened and learned a lot, we’re doing this in my physics class and i never pay attention in that class but for some reason i payed attention because you have a a body aswell 😂
It’s way better to use these theories in real life than imagine them. For about $20, you can get a pile of random electrical stuff to play with. I highly recommend it! It’s great education!
Thank you for your video
You’re very welcome! I’m glad you enjoyed it!
You just great
Thanks! You are great too! I appreciate you taking the time to watch and leave kind feedback!
Awesome!
Hi, very niece seeing believing explanation. You suggested Fuse Variety Pack. Can you suggest me relay variety pack also? Thank you!!
cool!
You da man!
Thank you! I’m doing my best out here!!
OK, Bink-A-Tee Bam....New technical term? I will be using it.
It’s one of my favorites. Though I say it “Biggity bam”. :D
good
awsome videos. how would you test the fuse to know it is blowing at the correct amp? or just dont buy cheap fuses?
Good info, I recently ran across your videos, my question is how do you find out what a device, like a fan motor, draws as far as amps? I'm trying to use a pair of cooling fans from a donor car. I have tested them separately. But when they are turned on together it will draw more amps. Suggestions?
I am from Egypt and i keep watching your vidoes
Keep on Man ,, you are doing the best vidoes in world
Can you make video for wiring Gps tracker with eninge Cutoff relay ,, causr thieves so high here
If you read my comment wiill be happy of small reply
If you use 12 volts instead of 13.5, you get 6.666666 amps. You should probably use that measurement because it will give you higher amperage. Therefore, it may require, in some instances, larger wire/fuses
thank you very much.
My radar detector did not work in sudden, i thought RJ11 wire cable was too old (10 years setup, using on my 3rd car now). so I bought the entire hardwire kit from Amazon.
My old hardwire setup: 7.5AMP bladefuses with fuse adapter + Glass Fuse 1 Amp 250v.
Before I change to new hardwire kit, I realized that old table burned my Glass Fuse 1 Amp 250v.
So I replaced the glass fuse 1amp (new from new hardwire kit - there are extra in my new hardwire kit), radar detector work again, it only work again like few mins, but new Glass Fuse 1 Amp 250v burned out again. I don't know why??????????
Now I changed the whole setup to new hardwire kit. its 3 AMP bladefuses with Fuse adapter + 1 Glass Fuse 1 Amp 250v (same fuse but new) . It looks fine, but I'm not sure why my old hardwire kit burned out two * Glass fuse 1AMP (first glass fuse used for 10 years), and second glass fuse (new - only use for 2 mins)
Do you know what is the problem? Do you have any idea? please thank you!
BTW thank you for your information, I have learned about gauge + watt + AMP thing, that is really helpful and great example idea. I wish u 100k sub soon.
** The power is coming from accessory empty spot in car fuse box**
**Fuse adapter i only put 1 bladefuse on top one**
Since that is empty fuse spot, so i did not put 2 bladefuse on fuse adapter.
my new wire kit: 13FT RJ11 Style Radar Detector Hardwire Kit,Quick Connection Plug and Play Cord Cable Set
(i don't want to share amazon link and affect your channel)
But you got to remember it draws more when it first turns on . So use a 10Amp fuse. 2x55 watt bulbs 15 Amp fuse 2x100 watt H3 bulbs 20 to 25 Amp fuse.
But that was a grate video.
So how do you choose the “style” fuse you use? (Regular, mini, etc)
Do you have a recommendation for wire types to purchase for car wiring?
I've read the fuse margin to be 1.25x then pick the next size up. So, 5.92A X 1.25 = 7.4A, so 7.5A is fine. It might be you skip to the slightly bigger fuse than just enough but it should cope with spikes etc a bit better than just the next one up.
It's better to err up just a fraction on the wiring anyway, especially on a longer run or if marginal and the fuse is there to protect the wiring, I think.
Hi. Can u use a mini fuse in a car that normally uses a mini low profile fuse of the same amp?
It fits and works, but is it safe?
If you have an old wiring Harness,How do you tell what the different Gauges of wires are if you want to use some of the wires ?
I have a fusible link for my alternator/fuse block that keeps blowing. The alternator is a 60amp. Not sure what size fusible link is on it now. Wanted to switch to maxi fuse. Will a 60 amp do the job or should I go higher ?
If I were to have a wire leading to multiple other lights. Say one wire to a bus bar and then separate wires to each light do I only need to account for the amps per light on each individual strand, and then the combined amps from the bus bar to the battery?
I'm good with residential and automotive wiring, but like how do you figure out what relay to use when wiring a car when ever I had to fix something n if it was the relay I would just replace it with the same but for wiring a car from scratch how would I figure out what relay to use 🤔
How to read wire chart would be good thks
6:00 Attention is required here. Lets say OEM is a H4 bulp 55/60W and Fuse 5W but the bulp is changed to 100/90W but fuse and wires are still OEM !!!
I would have used a lower voltage rating which would mean higher amps for the sizing.
Sir,how about for mitsubishi lancer pizza pie what fuse need to use
Hi, I keep blowing 30A inline fuses from battery to relay to satart the car all new 8 gauge wiring, I dont know what the starter amperage is for starting, if I go to 40 amp or greater which nmeans I have to increase the wire gauge may up to 4 gauge, what do you think.
hello, as I learned in HVAC school thiry years ago, the purpose of a fuse is to protect the wiring.
Still correct, 30 years later!
I have a 2013 ford fiesta se, I’m installing an aftermarket radio in it. Unfortunately the car doesn’t have an accessory wire so I can’t seem to get the new radio to turn on when I turn the car on. I need to tap into an accessory fuse. My question is what size fuse should I use and should the fuse tap have an extra fuse unit. Alas what site wire should I use. Thanks
Okay so if I have a starter that I want to put a Mega Fuse on. What size would I need if the vehicle requires 585CCA (cold cranking amps)? 600A Mega Fuse? What about using a MRBF terminal fuse right on the starter. So if it blows, it won't arc anything but the fuse.
Im doing a car charger directly to the battery ot draws 17w so 1.23 amp ive got 2 amp fuse should be ok
Nice video how's the pontiac doing
Thanks for watching. I’ve had a Pontiac video half way made for months now. I should probably work on that. Lol.
So according to your sample chart on wire size for fuses I’m see 6 ft not 10 am I missing something?
Is the 80 watts for the seal beams when they are hot as the heat changes the resistance of a bulb which will change the amps eg. A light cold might be .5 ohms and light hot might be 3 ohms which will change the amps
Very true! So it’s always good to look at the factory ratings for any kind of electrical item that is added to a car. Some amperage draws at start up can be very surprising. Thank you for watching and sharing that info!
What voltage is your power supply set to to burn thru the wire ? Basically if i use nice and thick wire together with smaller rated fuse that’s the safest for a tap ?
They seem to make fuse holders with thick 12 gauge wire while the fuse taps are for 16 gauge. 😣
You're making a habit of explaining things waaaaaayyyy too clearly... 😁
Haha. Thank you! I really appreciate that!
That eraser made me click subscribe 🤣
What wire is best to use for a 12v fuel pump?
It depends how many amps the pump draws through the circuit. The bigger the pump, the more amperage it draws, and the larger the wire you’ll need.
I installed a wolo horn on my 2022 Corolla Cross. I just hooked in to the previous wires. It worked at first, but now it blows a 10amp fuse. Will I have to go the relay route? And if I go to the fuse box for power, will it turn off with the car?
This is my first time learning about a wolo horn, but it looks like they recommend a relay in this diagram addonaccessories.net/media/wysiwyg/419-519.pdf
So how do you figure out how much amps is going to be pulled when the item has no description specs.
There are electrical meters that you can use to test actual amperage load. For the meters you can buy at your local auto parts store, they usually have a limit of wither 10 A or 20A that they can test. I'd get the one that tests up to 20A. If it exceeds that, then the other type of meter is a clamp on, loop ammeter. They can go much higher since the current isn't running through the device. Setup the device in a test circuit on your work bench with a car battery, 12V DC power supply or a battery charger as the power source.
So how do i determine what size wire goes to the relay that just trips the switch to connect the power to whatever???
I don’t know how the heck you tube knew that i was going to attempt to start wiring my custom golf cart today???? But i guess some miracle took place and put your video
‘s on my phone this morning without me searching anything. Feeling better now that a fire will not engulf the cart after I’m done. Thanks so much for sharing your wealth of knowledge.
what about connecting two different gauge wires like a 12 gauge to a 16 gauge?
I have auxiliary light with a connector that's 16 gauge and I have a wire harness that is 12 gauge
The light produce 1.14amp
You would have to do your measurements based on the 16 gauge wire, because it’s the smallest in the circuit. 1.14 amps is not much though, if you look at the chart I have linked in the video description, you can see how many amps a 16 gauge can handle.
In your headlight scenario, the amperage load has determined that you require a 7.5 amp fuse and the minimum wire size required is 16 gauge.
If I happen to have a large spool of 14 gauge or 12 gauge wire available, can I use those larger gauge wires in this scenario? If the larger wires are used, does the amperage of the fuse required change? I happen to have 7,000 ft. of 12 gauge copper stranded wire. lol.
That is a LOT of wire! You can use the thicker wire, and the fuse size will stay the same. Good luck with your project! :)
@@WiringRescue Thanks. I've had trouble finding an answer to this question. Everyone just warns against downsizing wire sizes. I know people do "The Big Three" wiring upgrade, that up-sizes the battery/starter/alternator wiring, without changing the fuse specs.
So when you calculate the amperage do you double the amps size since there’s two lights?
He doubled the watts (40x2) before he calculated the amps, so no you would not double the amps
@@The444Life wow I don’t know how I missed that…
Does it matter if the fuse is installed on the positive or negative lead?
Assuming you aren’t building something really weird, the fuse should be in the power wire as close to the battery (or power source) as possible.
Here is why - Imagine your car’s chassis is grounded to the battery (as it should be). Any power wire coming off the battery has the potential to touch any part of the chassis and cause a short to ground (Fire!) So if you have a power wiring coming off of your battery, going to an accessory (maybe a fuel pump for example), and then have the fuse in the ground side of the fuel pump circuit instead of the power wire, you will still have this super long power wire coming off your battery that could accidentally ground out in your chassis and cause a fire.
If the fuse is on, or super close to, the battery, in the power wire, then the entire circuit is protected.
HI jeramy, i like your electricalwirirng circuits, my prioblem is that i amworking on my classic volvo p1800, 1971 model. i bought a set of four led rear covette c5 tailamps, but i am not sure how to wire them, i need your help to provide me with a circuit diagrame. thank you
so let’s see i have a pair of led lights that don’t tell me how many amps they are it just says “240w/pair”
i’m assuming if i do the math 240/13.5=17.78 so that means i need a 20 amp fuse and 20 amp relay to run them safely?
i checked the actual amp draw by hooking up the lights to a spare battery and putting my volt meter on DCA10 and putting my meter inline to complete the circuit and it was drawing 3.77 amps.
confused and don’t wanna burn my car down lol
But what if battery power to draw eg lights is just 7’ not 20’?
What gauge wire?
There is a chart linked in the video description. Check out the chart and it will tell you the wire size that is appropriate for each amperage based on the length.
Also worth noting that the total length of the circuit is BOTH the 12V positive supply wire plus the length of the ground wire. If your ground wire is super short AND is connected to a clean, (not rusty or corroded or painted) ground point on the chassis then you don't need to include it in the total wire length. But do make sure all of your chassis components are all grounded together with excellent connections and cable. I'd use an old wire or string to actually route the path of the wiring then measure the total length. It is surprising how many feet it takes to route it neatly and out of the way.
can i use a 10 gauge wire in a 15 amp circuit?
It depends how long your wire is. Check out this chart I found. assets.bluesea.com/files/resources/newsletter/images/DC_wire_selection_chartlg.jpg