circuit breaker box

I dont think you can get breaker boxes like in a house for your vehicle... Maybe you can modify a small MLO box lol... I still dont understand why you want multiple breakers but to each his own. You could always buy the breakers and possible fabricate something..? What kind of breakers are you looking at? Link?

No link but parts express has the breakers they are not just one size the breakers come in 20 30 and 40 amp loads I had also plan on putting some fuses fin the box That I plan to fabricate seeing how I work in a metal shop the breakers will match the amperage so if the item being fused is in need of a 30 amp fuse it will have a 30 amp breaker instead... Somewhere down the line I think that I was labeled clueless!!!!! 

I understand your point Teken but I know how this works the fusible item will have the proper amperage breaker....

But I do not know is how if I am taking the power off the battery directly is how to make some of the breakers live only after the key is turned on to ignition... Please help on this if you can ? 

so a relay can only handle 30 to 40 amps what ever its rated for! so if I wanted somthing to switch it would have to b 30/40 amps or find a relay with bigger amperage?

How would you trigger the relay off of an ign fuse? Is there another way to do this?

Would running the relays lower the impdeance of what ever item is getting power off of the breaker

Thanks for your help

Maybe.. just MAYBE if you posted exactly what your intent is.... teken and the rest of the gang can show you a way to do it.

As i understand it from reading the 1st post a dozen times and several quotes and replies.. you are going to hook up several high current items to be on ONLY when the ignition is in the ON position. You want to instead of putting a simple blade fuse in-line to protect your circuts, hook up a circut breaker, so if something goes wrong, or too much current is being drawn, it will pop the breaker, and you can simply throw the breaker the other direction and make it live again.

One thing you are failing to realize, is, if you blow a fuse/ trip a breaker, the solution is NOT to put a new fuse in, or toss the breaker back on and go about your buisness. Something is either drawing too much current than the rated fuse or something is shorted out.

Just like in a house, if a breaker trips, its not because its an old peice of sh*t, its because something came on (compressor/Oven/Washing machine) that was drawing TOO much current than what the breaker/fuse/wiring was designed to handle, or, there is a short somewhere and by simply flipping the switch, you did NOTHING but turn the power back on long enough for it to do it again.

Lets say you wanna hook up 50 100w lights(example) all over your truck. Well, if you tie all these 50 lights into the same power wire, protected by a single 30 amp fuse. running off of the same switch... your gonna pop the fuse, espicially as ground wires wear out, bulbs wear in, ext.

The soloution is: Wire up several 30/40 amp relays, to be triggered off of the same switch (your IGN wire in this case). Run several power wires to the battery, all seperately fused. So now, when you turn the ignition ON, the several relays you wired up are drawing very little juice, they throw the relay, and POW.... all of your lights just came on. There is a mathmatical conversion that will help you figure out how many relays to use depending on how much current is needed.

That was all just a huge example... so dont go off on me for dodging your question, yadda yadda yadda....

If you have many things, all seperately fused, wired directly off of your ignition wire, your still going to blow fuses/trip breakers/burn wire because the ignition wire cannot supply all the devices with enough power, so it blows the fuse(S) or trips the breaker(S) or burns the wire(S).

Like i said in the beginning, explain exactly what you are trying to do instead of giving a vauge idea and being resistant on peoples opinions.

Tell us: Guys, im trying to hook up my 19' western plow w/100watt strobe lights so it has power when the ignition is on. Im also trying to get my fog lights/ CB w/10000watt amp + Laptop's AC inverter + cell phone charger to come on the same.

These guys are fantastically smart! If you give more details, the more likely they can help

Sorry if i got too in depth there. Your soloution is not breakers, Your solution is relays.... the relay does exactly what its named for.. it relays power... it takes a small ammount of power... relays it along so its bigger brother can carry the load. so... when you apply power(ignition) to one side, and ground to another side, it will flip a switch and allow the other 2 pins of the relay to make contact... here you have your high current wire, ran from the battery, and on the other side of this "switch" you have high current output. When the ignition power is shut off, the switch releases, and the current flow from big brother stops, and the circut is dead.

85 to IGNwire 86 to ground (85+ 86-) ~  87 to battery(fused) ~ 30 to whatever your tryin to power up. Soooo.. with the key OFF ... 87 and 30 make no contact...  when you turn the key ON.... a small ammount of current is sent through the relay, flipping the switch ... taking the +12V from the battery and allowing it to travel across the relay to pin 30, completing your circut and powering up your devices.

Hope this helps, let us know, sorry for the replies like this.. but i confused myself with my 1st post = )

Now we are getting somewhere

Explaination is a two way street!

I did not relazwe that a breaker will not "break as quick as a blade style fuse.So why do you use breakers in automotive apps then? then how if breakers are not the answer here do you suggest a way to create a power acess point in vechile that can taped at any time for power?

Thanks for getting this back on track

Nick