whats this bit called please!

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whats this bit called please!

Postby duke1 » 14 Apr 2019, 21:42

hi all as title i cannot for the life of me remember what its called and need to replace whatever its called if indeed i even need it i only fitted as the original controller was connected to it and theres no other fuses or breakers,the chair has a vsi fitted now so if the mystery thing is essential is there a modern equivalent as this is 1985 kit,thanks for any help,heres pic,peace
ssdd pc lb etc 14 04 19 003.JPG
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Re: whats this bit called please!

Postby duke1 » 14 Apr 2019, 22:06

thermal circuit breaker! question would this be a suitable replacement? https://www.ebay.co.uk/itm/50A-Amp-Manu ... ctupt=true
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Re: whats this bit called please!

Postby iainsherriff » 14 Apr 2019, 22:53

Matt (son) is chair user.
MS fairly advanced
Quickie Salsa Mini2 for indoors
TGA S4 for dog/kid walking
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Re: whats this bit called please!

Postby biscuit » 15 Apr 2019, 09:53

I got this to replace thermal circuit breaker:

https://smile.amazon.co.uk/gp/aw/d/B07G ... asin_image

It's 30A but it cost about 7.99 - so maybe the price rockets with the capacity or quality, but yours look hell of expensive to me. I also got a pair of those breakers from an Amazon Chinese seller for a couple of quid and a lot of time waiting for it to arrive.
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Re: whats this bit called please!

Postby duke1 » 15 Apr 2019, 12:04

i found this one it looks well made and even has covers for terminals and is a lot cheaper and being very poor thats important,i wonder is there a simple test for finding for sure if it is indeed faulty/worn out,of to look on google!heres what im going to order
https://www.ebay.co.uk/itm/12V-24V-Car- ... 3040415160
if its no good then i shall have to save for a while,peace
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Re: whats this bit called please!

Postby Burgerman » 15 Apr 2019, 13:32

That will work. 80A ideally.
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Re: whats this bit called please!

Postby biscuit » 15 Apr 2019, 13:41

See pm, duke1
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Re: whats this bit called please!

Postby ex-Gooserider » 16 Apr 2019, 00:16

Thermal circuit breaker = FUSE.... except that it's resettable. There isn't a really easy way to test them, other than having them blow more than expected... OTOH, unless they are tripped and reset a LOT of times, they aren't likely to wear out. However they can have problems due to corrosion if they are frequently soaked / exposed to weather....

For the most part you can replace with any fuse or breaker with the same or slightly higher rating - it isn't real critical...

However if you are blowing fuses, you really want to investigate and be CERTAIN there isn't a reason - such as an intermittent short, worn motor brushes, etc...
If you notice anything in the wiring harness or other bits that is warm when the fuse blows, that is a definite sign that you have other issues, and the breaker is working properly by blowing like it should...

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Re: whats this bit called please!

Postby duke1 » 28 Apr 2019, 13:02

biscuit wrote:See pm, duke1

hi biscuit i fitted the circuit breaker you sent when i changed the control system so far it is great so thanks again and atleast you know it went to a good use,and my tina says bless you she is very happy :clap: cheers peace
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