Trip switches instead of fuses

Trip switches instead of fuses

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Discussion

Howitzer

Original Poster:

2,835 posts

216 months

Friday 11th April 2008
quotequote all
When some custom build cars use trip switches instead of fuses, are they an automotive style one or is it a general industrial style trip?

Dave!

Edited by Howitzer on Friday 11th April 17:45

Steve_D

13,747 posts

258 months

Friday 11th April 2008
quotequote all
Slight confusion here. Title says fuses, post says relays.
You would not use a trip in place of a relay as a relay is there to carry a load.
I have not seen automotive trips in place of fuses nor can I see the need for them. If a circuit is designed/specified well then the fuse should never blow unless a fault develops.

Steve

Apache

39,731 posts

284 months

Friday 11th April 2008
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I've seen thermal trip type fusible wire used before (on a 1975 Harley)

Howitzer

Original Poster:

2,835 posts

216 months

Friday 11th April 2008
quotequote all
Sorry, edited my post.

Are these not used on modern rally cars nowdays due to the small size of the new ones and for ease of use?

I could just get a basic MK1 escort loom for the car but I want to do it all a bit different.

Dave!

ATG

20,577 posts

272 months

Friday 11th April 2008
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Except it is easy to see if a trip has switched and a pain to see if a fuse has blown. The "properly designed circuits don't need trips" line rather ignores the whole reason for having any kind of overload cut-out in the first place ... i.e. they are for when a properly designed circuit stops working properly.

Steve_D

13,747 posts

258 months

Friday 11th April 2008
quotequote all
Looks like Demon Tweeks do them. At £27 a shot they can keep them.
They do a box for them as well.

http://www.demon-tweeks.co.uk/products/ProductDeta...

Found these elsewhere. Blade fuses that light up when they are blown. I think these are a much better option.

http://rallylane.com/product_info.php?cPath=66&amp...

Steve

Mikey G

4,732 posts

240 months

Friday 11th April 2008
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These are a bit cheaper
http://www.demon-tweeks.co.uk/products/ProductDeta...

And i used them in a Mini build i did quite a few years ago, but i only used the trip for the fuel pump's. seemed pointless for anything else.


Ramthorne

4,068 posts

216 months

Friday 11th April 2008
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I used ETA circuit breakers rather than fuses, they can also be used as the switch which negates the need for a relay. They are common on planes and military vehicles. I picked most of mine up on ebay for a couple of pounds a piece.

Handy if you are racing, you take do a quick risk assessment and bang it back in to finish a race.


ATG

20,577 posts

272 months

Saturday 12th April 2008
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Steve_D said:
Found these elsewhere. Blade fuses that light up when they are blown.
thumbup ... good spot

shpub

8,507 posts

272 months

Monday 14th April 2008
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Specific packs for TVRs and top up packs have been available for some time. see http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Howitzer

Original Poster:

2,835 posts

216 months

Monday 14th April 2008
quotequote all
Ramthorne said:
I used ETA circuit breakers rather than fuses, they can also be used as the switch which negates the need for a relay. They are common on planes and military vehicles. I picked most of mine up on ebay for a couple of pounds a piece.

Handy if you are racing, you take do a quick risk assessment and bang it back in to finish a race.
This sounds like what I want.

It's for a drag car that will be used on the road.

Thanks guys, all help much appreciated as always!

Dave!

MattYorke

3,771 posts

253 months

Monday 14th April 2008
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