Circuit Breakers vs Fuses

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Circuit Breakers vs Fuses

BigBrother-84
Hi Gentlemen!

Need a lesson about CB and Fuses.

Reading at the Fuse Panel list, do we understand that, for Fuses 12 and 14, we should put a fuse or a c.b., depending of the protected accessory?


Jeff / 1984 F350 Crew Cab 4x4/5.8L w351 4V/ T18/ D50 4.10 front/ 8' bed.
Restored 2019-2022.
Nicknamed «Big Brother 1984», due to its soooo-looong shape & nod to George Orwell's 1984 famous novel.
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Re: Circuit Breakers vs Fuses

81-F150-Explorer
Not sure what you are asking here, but I'll try and answer. Hope I'm not being obtuse.


Resetting Circuit breakers are typically used when a fuse blowing might be just as hazardous or more hazardous than a short circuit in certain situations.

The Circuit breaker in the Headlamp switch is one.  When operating properly, it makes your headlamps flicker, but not go completely out when there is a short circuit. Headlamps going completely out on a dark highway not a good thing.

Power windows and door locks were thought the same way.  What if you needed to get out in a hurry after a crash or other such problem etc... Thus resetting circuit breakers.

It's covered in the Federal Motor Vehicle Safety standards;
FMVSS

I hope this helps...

Truck: 1981 F-150 Explorer / Engine: 300-6 California MCU Feedback System / Trans: T-18 - 4 speed / 2.75 Ford Rear Axle Open Diff.
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Re: Circuit Breakers vs Fuses

ArdWrknTrk
Administrator
In reply to this post by BigBrother-84
"Tailgate power window" is unique to Bronco's.

They have a very different rear half of the main chassis harness. ( power window and lock, the way the taillights ground, etc..)
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.
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Re: Circuit Breakers vs Fuses

BigBrother-84
In reply to this post by 81-F150-Explorer
In fact, my question is about the way the fuses table is made.

For #12 and #14, it seems to show two possibilities:
•12: 25A fuse or 30A cb
•14: 25A fuse or 20A cb

I am questioning if each "choice" is written on the line of its specific protected accessory.

If not, what's the meaning of these "multiple" choices for each of #12 and #14?

Jeff / 1984 F350 Crew Cab 4x4/5.8L w351 4V/ T18/ D50 4.10 front/ 8' bed.
Restored 2019-2022.
Nicknamed «Big Brother 1984», due to its soooo-looong shape & nod to George Orwell's 1984 famous novel.
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Re: Circuit Breakers vs Fuses

ArdWrknTrk
Administrator
The same fuse panel is used in a truck and a Bronco.

If you have a Brono (with a tailgate) you get a fuse.
If you have a truck with power whatever you get a circuit breaker
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.
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Re: Circuit Breakers vs Fuses

BigBrother-84
Ok, thanks!
Jeff / 1984 F350 Crew Cab 4x4/5.8L w351 4V/ T18/ D50 4.10 front/ 8' bed.
Restored 2019-2022.
Nicknamed «Big Brother 1984», due to its soooo-looong shape & nod to George Orwell's 1984 famous novel.
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Re: Circuit Breakers vs Fuses

81-F150-Explorer
Sorry for my confusion there.

Truck: 1981 F-150 Explorer / Engine: 300-6 California MCU Feedback System / Trans: T-18 - 4 speed / 2.75 Ford Rear Axle Open Diff.