Making a Fuse / Relay Box COMPLETELY FROM SCRATCH! 

You did a great job, Craig...Nice, Neat, and Clean...... I see your having a difficult time trying to explain, in an easy way, of how a Relay works.... Let me try and help...... Basically,,, a Relay is a Secondary switch....It get's turned on (activated) by another switch... Power passes through the first switch and Energizes an Internal switch inside the Relay... Once the Relay is Energized (closes), it then sends Power (from a Secondary power source) to the Item/part, that you want switched on..... Once the first switch is turned off, the Relay is De-Energized (Opens) and the Secondary power supply is shut off to the Item/part.... SOooo..... Using your fuel pump as an example.... Flipping ON the Toggle switch in the cab, activates the internal switch of the Relay to CLOSE, which then sends power from a Secondary power source, to the fuel pump and making it RUN.... Flip the Toggle, OFF...Relay OPENS...Power is lost to Fuel Pump.... Hope this helps, somewhat....

Nice job with the setup. I actually learned the value of using a terminal block to make the wiring a bit more professional. Thanks!!

Awesome video! There wasn't extended footage of little tedious tasks and explanations of things that don't need to be shown or explained, like: striping wires, every small detail involved with the actual process of mounting things, or going too deep into the story of what things are and what makes them do what they do. I thought you kept the information as short as possible. I like seeing a component/ device mounted and then going over how you got there in a quick but detailed summary. Obviously, when or if someone else did the project those variables will change from vehicle to vehicle. You covered the basics very well. This whole scenario you put together actually helped me a bunch, even though mine will be a bit different, it's still a great proof of concept video. There was a lot in this clip and it was well presented in my opinion. Thanks for sharing definitely .

This vid is seriously helpful. I'm working on making something like this for my k5 ls swap.

Now that was good. It takes a lot of patience to wire any project that makes the rig totally disabled for a period of time. You really win out when your done and it not only looks good but does what it was intended to do. A lot of tedious work but it quiets the sole after a while as the project comes together. Great video, I to have done this but it was fun watching you suffer through the hard spells of running the wires to the intended items. Lots of loose wires until you commit to the length needed without coming up even a half inch short and trying to stretch the wire to where it goes responsibly. Again great video but your education has lent a hand it commitment to this project. Most will only look but you did it and should be proud

You did a very good job on making the fuse box for your truck and I'm very impressed you can make that very easy but hard to figure out the wiring and trying not to catch the truck on fire. Great Job Craig. Keep up the Great Work.

Great job on the relay/fuse box. For the « always too long » screws, a trick is to cut the point off with a Dremel after they’re screwed in, so it’s flush behind the plate ...

I would have a hard time not using color coded wiring for easy troubleshooting but I definitely admire your Red White & Blue color scheme.

this is the best video on how to make a relay and fuse box from scratch no other one has shown how to install one of these .. big thumbs up to you and a big thank you and im a subscriber fron the lil island of jamaica and im just getting into wiring as i build race cars for a living and ive always had to call an electrician and they never allow me to watch wat they do cause they always sending me to make adjustments but now i can prouldy say i can do it myself... thank you very much...

Wow, nice job. It is awesome to see how much care you take working on your truck. Thanks for sharing.

Every thing is beautiful thanks for the great job 🇩🇰👌

Great job building your box you did explain everything really good, but I only have one question on the switch to turn on any device, can I use power from the relay .... 87 power going out

Very nice explanation! Thank you very much

those headlights are badass

Thanks, young man!

So well was your description of how you powered the relays. Great job. Keep up the Good Works 👍

I like it, when I was young, I just ran wiring everywhere

Bit old now, but good job, one thing....run your fuel pump relay trigger off a power source that is live only when the engi e is running...like your oil pressure sender ...that way, in the event of an incident, the fuel pump will stop if the engine isn't running.....a lesson I learnt the hard way....fuel fed fires aren't good....

Would have helped during your explanation which colored wire was attached to which corresponding number on the relay

Thanks for making this video. This cleared up some confusion for me

👍👍👍👍 thank you so much man!

If you dont want to look for a hot source under your dash for the switch to turn on your relay then route your wires differently so a negative source turns on your relay. Under your dash run the negative relay ground from the relay to your switch then just ground your switch out on any metal under the dash. Super simple and a lot easier.....

Great job explaining everything. Question: instead of plastic, could I use an aluminium or metal plate for the base of the fuse box? Or should I use plastic to avoid groundings?

might want to do a main relay for that sub pannel just so when you turn the key off that pannel goes dead just in case a relay fucks up in the closed position and kills your battery or for accident / fire reasons, and possibly move your under hood lights to a constant 12v but your choice really.

Whats the point of the terminal block? Why not just join the two wires together (crimp,solder) to the switch/aux item?

The screws you used to mount everything to the ABS panel could be marked, then cut off with a cutoff wheel, then screwed back in. This would leave the back of the panel free of the screws sticking thru. Another solution would be to use machine screws and tap the holes in the ABS sheet.

Thanks ' شــُـكـراً لــّـك مــُــمـتــآز جددداااً . Very Excellent Ideas and Instruction. وأصـــّــل المشوآر Keep Up . Best Regards . Arab Aircraft Engineer and QC Lead Inspetor , Jeddah, Al-Hajaz, Arabia .

Great work thanks for the video, im curious I have a 66 impala and i also have the same old style tube fuses, I just purchased a new fuse block, but im looking to remove my old one and replace it with newer fuse box because the back of the old one has rust and corrosion. Why not replace the old one that you have?

If the relays have their own negative wire, what do you do with all the negative wires that each accessory already has? If you combine all the negatives wires into one from the relays do you send that back to the battery or do you attach to chassis of vehicle?

Nice job on the install! I'm looking at doing the exact same setup for my off-road lights on my Jeep. I do have a quick question though. What did you use to cut the plastic sheet? I gotta find a simple way to do it being that I live in an apartment and have no access to band saws or anything of that sort.

May I inquire where did you get the L.E.D. under hood lamp? Thanks for sharing.

If you mount it there, the bonnet hinges may impact it.

This looks awesome! I cant wait to try this on my truck!

Dude congrats on the sponsor man i hope i can get optima on my side to, don't really have good and affordable batteries here!

Hello,I had a question,I want to install heated seats to my car and install couple more charger ports and other things,I was wondering is this would work for that or a different system? I want a individual fuse for the ports and heated seats

I was under the impression the 85 in the relay was your ground. The diagram you made had 85 as the ground.

Here from the new f100 video, wiring my 78 C10 and it’s gonna be pretty similar to the f100

How did you get so confident in doing all this stuff to your truck? I just feel like I’m gonna screw it up.

Awesome video man great information! Keep up the good work

How do you know which relay you need? IF i wanna build a new fusebox in My car, i Will need to change the relay cause they are just made to fit that specific relay thats mounted in the csr

Are you sure you used a 300 amp breaker how does that work? im new to this and love your work.

Nice video! One question, couldn’t I run the yellow wire (86) back to the relay board in an open slot that’s also fused and just use the ground to the switch? Could this done this way?

I have the same stuff that Fab Forum did & im using black as ground. That’s what amazon site said to do

been yelling ZIPTIE half this video!! but nice asf.

Thank you for going so in depth with this, it did made sense.. just subbed

Where did you get the panel and power block from

Make sure you always cary exer relays and fuses in the glove box

What is the 12v wire running to from the battery to the right of your fuse box I’m learning as I go on my truck from channels like this thanks man

You can remove that big starter solenoid and use one of the relays and rewire the starter wiring

Good luck with Optima i had a red top in my truck it worked ok kept dying so i took it to autozone to charge it then it took out my alternator out. Witch isnt cheap on my truck, and took it back to autozone they said it had a burned cell and its warranty had just expired,..

You should put the switched source right next to the power out terminal so you don’t mess up with counting which ones give you the power out,, otherwise good job 👍

Just cut the screws off in the back where they are sticking out.. then use the thin rubber and mount it up.

why add the bus bar tho? What not just go straight from the relay to the switch and straight from the relay to the accessory?

Do you plan on replacing the entire fuse box with some thing Like this?? Would that even be feasible? 🤔

How did you do the lights?

Did you end up not using the 100 amp breaker?

Actually, I am asking a question from any expert on the subject, but first of all I'll have to draw the relay wiring... to Light / Fuel pump etc | | | ---------------------------- | 87 | from On/Off Switch ---------------------- | 86 85 |------------------ Ground/Earth | 30 | ----------------------------- | | | from (+ve) 12VDC from Battery As this circuit is showing Pin No 86 provide +ve 12 volts to the Relay via On/Off switch. (Google shows always this sort of connection). In my car, I inserted On/Off switch between Pin No 85 and Chassis Ground. (It works fine) The reason I did this... is I thought +ve volts are more dangerous for On/Off switch (made of weak/light material) which can't withstand the HOT power source. Whereas, the ground is like COLD unharmful source. :) Am I right or wrong? P.S. : Please forgive my bad English as I am from Pakistan. Thanks

whats the little 5/16 or whatever end wrench on your key ring for?

How many times have you hit your knee on that sheet metal with the switch? lol

So my switch panel has 7 switches for all kinds of lighting so do I need 7 12v sources from the cab of my ram????

I used to have a yellow top Optima battery and that thing left me stranded multiple times during the winter time, I just got rid of it.

If i watch a video more than 25 minutes long, it must be really interesting to watch. Nice vid and good job! New sub

i have a 2012 Ram 1500 i built one of the power distrubution blocks for a 22” LED BAR IN my front ,2 -7’ LED lights in behind my grill and 2-7” LED light i cut into my rear bumper my disturbution block consist of fused poweblock powering 4 relays a then going to a switch and power board just like you have but i also added a ground board , so there all individually grounded i used the 1”plastic washer to mount it on top of my TIPM fuse box , now my question i put my power distrubution ,setup inside of a small harbor freight gun box , thats what it looks like to me , do you think with it being closed in i will run into problems with heat ? anybody with any ideas id apperciate i a beginner still learn so i will take any criticism that would help me from catching fire thanks oh yea its wired to 100 amp circuit breaker using 0Awg wire to battery

great video man and congrats on 35k :D

I would have been lazy. I probably would have pulled a fuse/relay box out of a newer vehicle in a wrecking yard. Already put together with a cover. Nice job though.

Where did u get the plugs for the relays? None of the parts stores around me sell them

I’ve always heard these screws called sheet iron screws lol

your the best

Nice job,,but you said 10 to 16 gauge wire from battery,,, don't want to use less then a 10...

Cut the rest of the screws off with an angle grinder bud.making it flush with the firewall.

I’d woulda cut that foam into squares and stacked them until I got the necessary space 🤷‍♂️

Minute 14:28 actually made me move my hand...

Screws are called Tek screws.

Hello sir, I wish you a beautiful day and lasting success sir, I am a new friend and I hope that my friendship will accept my respected sir. My question is there are maps of wiring the lights of the car lights and the top with all the things of the car sir, I am grateful and thank you

Can I get similar parts that are NOT made in China?

Nice build. Good instruction. PLEASE STOP SAYING ACROSST!!!!! There’s no such word as acrosst. It’s across. Thanks you. Keep up good videos.

would of been nice to actually see you wire a couple of the items

909 ? Like so cal 909 ?

You should do more videos with the cr250

why don't you just grind those screws flush and then use that rubber padding, just saying ? i've ..one for my jeep works great

confused with ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5NFHaFeDfsI.html where you said 86 is ground and 85 is switched. In your diagram, it says 85 is your ground - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5NFHaFeDfsI.html

pwd ba mg pa pagawa nang harness ng honda click 150

It wouldn’t have been complicated if you didn’t try to explain 4 times

you should do a mopar btw

Looks like you bought the parts and put them together what did you actually make it's like putting a pizza in the over wanna make one from scratch make the abs make the relays make the fuses you just bought stuff and put it together

cut the excess off.

third!

red tops are useless yellow tops are the better optima lol

First

First 🇺🇸👍🏻

Second haha

Slow down