Anyone know what this

[Ian_5074271]

Does anyone know what this is, it seems to be a spring loaded connector. It’s in the red wire running from and near the positive battery terminal. Unfortunately the red wire broke at the bottom end of this connector and the release screw is so rusted I can’t it out, so I am going to have to get a new connector.
I seem to have lost 12 volt and 240 volt feed to the fridge and the charger does not seem to be working.
This has been a big step backwards in my caravan DIYing. Having got the fridge working brilliantly on gas, just needed new spark plug injector.

 

[Hutch]

Never seen one, but after a quick Google search, it is a ceramic fuse holder. .
Bakelite, very old or High temperature plastic body.

 

[Ian_5074271]

Well done Hutch, so basically just an in line fuse. I wonder what it is rated at. Looking on eBay it looks like I can buy one. 👍

 

[Hutch]

It seems strange why you have lost the 240 volt power. The normal sized fuses for 12 volt supply from the battery to the main power unit is a 20 amp fuse.
The fuse to a motor mover is, at least on my Coachman with a power touch MM. 125 amp.

 

[Hutch]

Well done Hutch, so basically just an in line fuse. I wonder what it is rated at. Looking on eBay it looks like I can buy one. 👍

I would possibly look at a more modern Blade type fuse and holder.
Fuse holder.

 

[toad a caravan]

May be from the charger,only low amperage due to size of wire

 

[ProfJohnL]

My money is on a fuse holder, but can't say what value, because its close to the battery its probably 10 to 20A. If you can extract the glass cartridge fuse inside, the current rating is usually stamped into one of the end caps on the fuse.

 

[Hutch]

Although Google search states a ceramic fuse holder, there is another site that shows a glass fuse in the same type of fuse holder.

 

[Gafferbill]

....funny enough I have one fitted in the positive lead from the battery on my caravan.
Mine hasn't a fuse as I have fitted a same size brass rod.
It serves as a quick safe way of disconnecting the battery by removing the rod.
Needed when using a second battery when off grid and wanting to isolate the main battery.