Will they fit (circuit breakers) (NO THEY WON'T)

Does anyone know if I can replace blade fuses with circuit breakers and the fuse box cover still fits ? Defender 300 TDI

Not being savvy here but sure circuit breakers have weak points to allow tripping.

Never seen them before they look pretty good idea though.

As for will they fit I don't know but do they spec a physical size in the blurb.

Where from ?

J

The merc trucks have them, they seem to be more resiistant to very short term shock loadings as we never see them, the other makes of trucks are always around for fuses after connecting to a trailer.
So yes they seem a good idea, but possibly overkill unless you have an issue/feuatre that causes fuses to blow often enough.

@marjon
Autoelectricalsupplies are the supplier I was looking at, there are many other sources
I don't have an issue but as I'm restoring my vehicle it would be a worthy upgrade I think, if the fuse box cover fits ok

IMO these will be a similar size

Cheers

Be sure to have some spares coz you will never know if you have a fault or the trip is faulty.

@marksman , is there a reason why you want to fit cct breaker type fuses? There's rarely a genuine need to use them and they can be super sensitive, tripping, when in fact there's nothing wrong with the field wiring/component. If your wiring and cct components are in correct/good condition and has the correct fuse size there should be no need for cct breaker/trip type fuses.

@v8250
No particular reason probably pimping it

marksman said:

@v8250
No particular reason probably pimping it

Click to expand...

I'd de-pimp it and save the pennies for a replacement lift pump or fuel stop solenoid...one or both are bound to fail sooner or later

Tried 1 today, the cabin fuse box cover doesn't fit over it correctly so won't be bothering with that.
Thanks for the inputs

marksman said:

Tried 1 today, the cabin fuse box cover doesn't fit over it correctly so won't be bothering with that.
Thanks for the inputs

Click to expand...

Put some locking nuts to hold the cover further away

ON THE CIRCUIT BREAKER YOU HAVE DO THEY GIVE THE TRIPPING TIME AND SURGE CURRENT OR ARE THEY CHINESE KNOCK-OFF

@mystery don't know it was one I borrowed from the workshop

the trouble with circuit breaker are that it's too easy to reset them when a fault is present hoping it will go away and cause further damage

They are very handy when you are trying to work out an interment fault and keep blowing fuses, means you don't run out of fuses before you find the problem.. I have a couple of cheap knock offs for that and carry one in my tool kit as a "get me home" fix.

@rob1miles
Good call, may get a couple for that purpose (I often diagnose others electrical gremlins)

I had one of these when i was having bad earth issues, turned out that it was my chassis loom where the lamp loom attaches!