No more fuses for me

[muffinman]

Got bored and took a few aircraft circuit breakers to the SS bike yesterday now I have NO glass fuses on my bike any more. Take a look and tell me what you think.

Jeff

[LilBeaver]

This is a great idea!

 

I've been considering doing something similar, but the time and resources are two things that I have not allocated for the project yet.

 

[Yammer Dan]

Nicely labeled and everything. How do you tell when they are kicked?

[Sling]

I can hear some helicopter pilot over in the sandbox saying :

"Where is the circuit breakers for the Armament?":stirthepot:

Great job!!

[muffinman]

The circuit is dead

Seriously Dan the black button end pops out and has a white strip that shows when the breaker is popped these are aircraft parts and you know how quickly they need to be able to spot a problem

Jeff

[friesman]

Got bored and took a few aircraft circuit breakers to the SS bike yesterday now I have NO glass fuses on my bike any more. Take a look and tell me what you think.

 

 

 

Jeff

 

That looks great! so when are ya coming up to Western Canada to do mine?

 

Brian

[RandyR]

You could probably sell kits of these for 1st and 2nd Gen bikes here on the forum and ebay if they weren't too expensive (not sure what the pain $$ threshold would be).

[mini-muffin]

The circuit breakers are about $500 because they are for aircraft. Jeff has been looking for an alternative that would be cheaper, so far he hasn't found it yet.

 

Margaret

[CaptainJoe]

Just don't try to get on a military base/cross the border or anywhere near DC with that bike Habib!

with all that cicuitry they may just think its a bomb!

 

Just kidding, it looks good... you'd think one of the bike or car manfacturers would replace those fuses with something that was re-setable...

 

One more for the Upgrade Wishlist!

[Dano]

Jeff, what is the voltage/amperage threshold for the breakers? Are they of a bi-metallic type trip or heat-spring?

 

What are you gonna do tomorrow?

 

Inquiring minds want to know!

[bkuhr]

Jeff, what is the voltage/amperage threshold for the breakers? Are they of a bi-metallic type trip or heat-spring?

 

What are you gonna do tomorrow?

 

Inquiring minds want to know!

 

Mil-spec 3320 aircraft circuit breakers, that these appear to be, are thermal breakers.

A good breaker will open a 1000%(rated amps) in .1sec, but a good breaker will not open a 138%(rated amps) overload after 1 hour. This means a 10amp breaker will not open with a 13.8amp load. I would suggest putting a fuse back in the TCI circuit, or install underrated circuit breaker.

[autopilot]

Resettable circuit breakers are available in the non-aircraft market because I specified them on the first of the Grove 150 ton truck & crawler-mounted hydraulic lattice cranes back in the mid-'80s. I have long since forgotten whose I used, but I do know that Sierra International makes a similar breaker that is marine rated, so it should provide the vibration resistance and water resistance needed for a bike application. And they're less than ten bucks apiece. I've seen them on Amazon.com. If I can run across some of my old material, I may be able to ID what I originally used. It would likely have been a variant of a part I use in nuclear power, without the "N-Stamp". I'll check and get back to ya.

[N3FOL]

Man, you must be really really bored.

 

Very nice job indeed and I assume you had the space to accomodate all those breakers and cover everything back. Congrats!

[SaltyDawg]

UUUMMMM!!! I'm telling!!

 

Good Idea Jeff.

[RandyR]

So, I looked for myself.

 

 

These fit in our automotive style fuse base without modification it would appear, except for height.

 

There are several styles of small breakers (I almost said mini breakers...)

 

here's the link to all their styles. Maybe we have ATC type ? http://www.bussman.com/6/BladeFusesandAccessories.html

Edited September 5, 2010 by RandyR

[bongobobny]

Hmmmmm, $500 apiece times all those breakers... You could just replace the bike for that money!!!

[CaptainJoe]

I'm beting on the

CB227 Type III manual reset ATC footprint low-profile circuit breakers comply with SAE J553 and SAE J1171 for ignition protection. Color coded in amp ratings of 5, 6, 7 ½, 10, 15, 20, 25 and 30A????

 

http://www.delcity.net/store/Blade!style-ATC-Circuit-Breakers/p_151.h_751807.a_1.t_1

 

 

 

$3.15 apiece???

[bkuhr]

I'm beting on the

CB227 Type III manual reset ATC footprint low-profile circuit breakers comply with SAE J553 and SAE J1171 for ignition protection. Color coded in amp ratings of 5, 6, 7 ½, 10, 15, 20, 25 and 30A????

 

http://www.delcity.net/store/Blade!style-ATC-Circuit-Breakers/p_151.h_751807.a_1.t_1

 

 

 

$3.15 apiece???

 

FYI

Society of Automotive Engineers Standard SAE J553

Standard J553 defines testing and performance requirements for circuit breakers

up to 50A for 6V, 12V, and 24V operation. It defines the three types of reset:

Type I, Type II and Type III.

Conforming circuit breakers:

Must carry 100% of rated current continuously for a minimum of 1 hour

Must open at 135% of rated current within 1 hour

Must open at 200% of rated current within 1 minute

The specific current capacity of the circuit breaker is a function of the particular

electrical system being utilized. It is recommended that the actual performance

be verified through testing experimentally in the proposed application.

 

[Dano]

FYI

It is recommended that the actual performance

be verified through testing experimentally in the proposed application.

 

 

 

I guess that's what Jeff is doing!

[CaptainJoe]

"It is recommended that the actual performance

be verified through testing experimentally in the proposed application."

 

 

Sounds like a CYA caveot to me...

Like : "Warning this coffee may be extreemely hot! " for all those dufffffesis that want to get rich quick without having to work for it.

Do I believe these $3.15 breakers are as dependable as the $500 ones? Of course not...

 

I'll research/test experimentally a little more , find out what applications they are being used in currently (Range Rover)? and buy a few to satisfy my curiosity.

I will also keep origional fuses for backup.

 

CaptainJoe the test Pilot!

 

 

[bkuhr]

Not trying to belittle anyone, and I personally do like circuit breakers. My whole point is that thermal circuit breakers, by design, can allow higher than rated current to be passed without opening for extended periods of time.

 

Just providing info, for those who may be interested.

 

The most critical electronic component on our scoot IMO is the ignition TCI, And would hate to needlessly burn on up.

 

Now to be fair, any fault we would normally experiance that would blow a fuse, would be a hard short, and a hard short WILL open a circuit breaker in milliseconds.

Also, if there was an internal TCI fault that would blow a fuse, probably makes no differance if a circuit breaker was slow to open, because the TCI has a fault!

[CaptainJoe]

no offense taken, my friend.

[Yammer Dan]

Hey Joe one opf the problems with putting anything in there is clearance to put lid back on. Looks like it might be a issue with those. My old one is getting brittle but I have a new glass tube panel I think is going in mine and I'll worry about it in another 25 yrs...

[flb_78]

I don't like circuit breakers. I've seen too many melted wires to trust them on an important circuit. They don't pop at their specified amperage. They have to get hot first and sometimes that can take a while.

 

I've also seen Harbor Freight and Chinese fuses melt a wiring harness because they do not pop. Instead the "fuse" melts slowly.

 

Nothing but Bussman Fuses for me.

 

Maybe the aircraft ones pop at the specified amperage. I don't know, I've never seen or used them.

[mini-muffin]

Hmmmmm, $500 apiece times all those breakers... You could just replace the bike for that money!!!

 

That's not a piece sweetie that's total.

 

Margaret