Windlass fuse

[Hadenough]

I have this monster fuse serving my windlass

View attachment 39551
View attachment 39552

It's ok but I can't source a replacement so am planning to replace it with one of these

http://www.furneauxriddall.com/acatalog/Mega_Fuses_Holders.html

Will this be suitable?

 

[pvb]

Yes, MegaFuses are fine.

 

[Hadenough]

Thanks.

 

[superheat6k]

Here you go - RS 703-8800 £13

These are common in industrial motors. Might even have a secondhand one at work, but won't be in for a few days.

 

[Hadenough]

Here you go - RS 703-8800 £13

These are common in industrial motors. Might even have a secondhand one at work, but won't be in for a few days.

Thanks too! May just stick with what I've got then and get a spare. Bloody thing is scary though, when I pulled it I thought the whole of Suffolk would loose power!

 

[Aurai]

A little knowledge can be dangerous, but my advice was to install a circuit breaker, 125A for Lofrans Tiger!

 

[bert49uk]

A little knowledge can be dangerous, but my advice was to install a circuit breaker, 125A for Lofrans Tiger!

+1

 

[macd]

Another +1 for a breaker. Windlass fuses do blow in the normal course of events, such as when picking up monster bits of old ground tackle. It's a lot quicker/easier to re-set a trip than a fuse. Incidentally, assuming a 1kW windlass, I'd go for something rather less than 125A to give the motor an easier time. Indeed, when I fitted a 1kW Tiger to my last boat, the importer recommended 80A: it tripped twice in six years.

 

[robp]

A little knowledge can be dangerous, but my advice was to install a circuit breaker, 125A for Lofrans Tiger!

+1. When it's blowing a hooley or you're well dug in, it's easy to overload, even if you're doing all the right things. Last thing you want at that time is faffing about with fuses.

Run yr engine at 1500 revs whilst lifting too. Keep the Voltage high as possible.

 

[prv]

Another +1 for a breaker. Windlass fuses do blow in the normal course of events, such as when picking up monster bits of old ground tackle. It's a lot quicker/easier to re-set a trip than a fuse. Incidentally, assuming a 1kW windlass, I'd go for something rather less than 125A to give the motor an easier time. Indeed, when I fitted a 1kW Tiger to my last boat, the importer recommended 80A: it tripped twice in six years.

I think my breaker is around that size as well, on a 1kw windlass. Haven't tripped it yet (only had the boat a year) but we haven't worked it that hard. Have certainly tripped windlass breakers on charter boats in the past, and have never come across a windlass with a fuse.

I would definitely have a breaker rather than a fuse - for the quick reset but also for the quicker blow. I believe fuses generally carry quite a bit more than their rated value for some time before blowing - the rating is the minimum they're guaranteed to carry indefinitely, not the level at which they're guaranteed to immediately blow.

Pete

 

[Hadenough]

Thanks all but the plot thickens! The boat is relatively new to us and I am in process of sorting it out.
It transpires that this monster fuse serves an equally monster cable that feeds the windlass and the bow thruster!! Windlass should have a 125A breaker as has been stated and the thruster needs a 250A fuse or breaker. I need to investigate further but I think I can install a 250a breaker to replace the monster fuse on the main feed and a 125A breaker to serve the windlass after the take off from the main feed.

 

[Boathook]

Thanks all but the plot thickens! The boat is relative new to us and I am in process of sorting it out.
It transpires that this monster fuse serves an equally monster cable that feeds the windlass and the bow thruster!! Windlass should have a 125a breaker as has been stated and the thruster needs a 250a fuse or breaker. I need to investigate further but I think I can install a 250a breaker to replace the monster fuse on the main feed and a 125 breaker to serve the windlass after the take off from the main feed.

I fitted a south pacific windlass last year and it came with a 75 amp circuit breaker. I came of the bow thruster supply going on the theory that I won't be using the bow thruster and windlass at the same time. If I do think it likely to use both I will have to run some extra wires.