Normal house fuses/breakers will pop at the rated current, voltage is
immaterial so you could just use that=20
In the UK lighting circuits are normally fused at  6 Amps, so depending on
the psu being able to supply the current to trip it this will work fine
(use a 12 V lead acid battery)
 =20

Years ago I replaced all the car fuses on a Citroen CX with domestic
resettable breakers (designed for 240V)  including fitting a 100 amp unit
for the alternator output,
It all worked faultlessly for over ten years, no changing fuses, just
occasionally flip a breaker on again=20

PC

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Carl Denk
Sent: 24 November 2013 22:31
To: Microcontroller discussion list - Public.
Subject: Re: [EE] Low current breaker

My heating contractor talks of a "Popper". As far as I can deduce, it's a
breaker in the form of a blade fuse like automotive. Probably in the
2-3 amp ratings.

What about when the circuit opens, a relay drops out, normal closed contact
closes, triggers a 555 timer with a sonalert buzzer, and an LED strobe. Or
program a small PIC to do the work. :)


On 11/24/13 5:08 PM, Charles Craft wrote:
> My son is working on battery powered circuits in school.
> Near the end they will wire up a model of a small house.
> We would like to add a breaker inline so that he can short two wires and
show the breaker tripping.
> Its doable with a low current fuse but having the sound and reset ability
of a breaker would more closely match a real house.
> If everyone is watching they might see the flash of the fuse but then
that's more pieces for him to track.
>
> Thoughts?
>
> thanks
> chuckc
>
>
>

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