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Old 28 December 2018, 13:34   #1
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Fuses vs circuit beakers?

My 2004 rib has a "Blue Sea Contura" fused 8 switch panel. It's beginning to not want to play nice with me having to wiggle fuses about. and I can't seem to find spares for it.

The easiest option is to buy an exact replacement so no new screw holes or gaps to fill but..

a) I don't think it's a common option in the uk with the replacement being 220+. ... please tell me if I can buy it cheaper

b) if I AM going to change it should I change it for a circuit breaker?


HELP!
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Old 28 December 2018, 15:06   #2
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if you do change it for the blue sea panel with the circuit breakers in it they will come with 15a as standard you will probably need to change these for less amperage ones the other option you could do is buy a secondary fuse board and wire it in through that I think the blue sea ones are about 70
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Old 28 December 2018, 15:08   #3
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blue sea bs5029 or bs5032 are both pretty decent items with stainless fitments
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Old 29 December 2018, 03:42   #4
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Can you not retro fit some circuit breakers into the panel you have?

Remove the panel and undo the fuse holders which are only screw backs and buy appropriate circuit breaker amperage with correct dia shank to fit hole..... should be quite easy...
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Old 29 December 2018, 03:54   #5
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Quote:
Originally Posted by butty View Post
Can you not retro fit some circuit breakers into the panel you have?

Remove the panel and undo the fuse holders which are only screw backs and buy appropriate circuit breaker amperage with correct dia shank to fit hole..... should be quite easy...
I think there is differences in the moulds that have the blade fuses vs circuit breakers
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Old 29 December 2018, 07:14   #6
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Worth an email to Blue Sea to see if their own circuit breakers could be used to replace your fuses?
Looks like they're only a few $ each.
https://www.bluesea.com/search/resul...cuit%20breaker

ETA or just a new set of their fuse holders?
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Old 29 December 2018, 12:12   #7
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I am ot familiar with tge exact blue sea panel you have, but i have used a blue sea panel with six switches, which was mounted on my rib
The problems with circuit breakers versus fuses are Two fold.
Firstly from the circuit breakers i have installed, making the push button waterproof could be problematical, especially if you sail in salt water.
Secondly, circuit breakers are electromechanical devices which have internal levers and springs. These can succumb to corrosion and vibration. If you hit a big wave there is a possibility it could trip the breakers. What are other people's experiences with circuit breakers in a rib.?
They are fine in yachts installed out of the weather for up to about 10 years, before corrosion gets to them. I have replaced many over the years.
Replacement fuses should be available. People like RS Components stock a vast array of blade fuses. Automotive parts dealer should also be able to supply you with them
If it is the fuse holders in your switch panel which have corroded and become dodgy, then just replace the holder. Again RS or any other Major Electrical Wholesaler will carry a wide range of tubular fuse holders. If it is the switches which are dodgy, then get a complete new panel
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Old 29 December 2018, 13:03   #8
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............................The problems with circuit breakers versus fuses are Two fold.
Firstly from the circuit breakers i have installed, making the push button waterproof could be problematical, especially if you sail in salt water.
Secondly, circuit breakers are electromechanical devices which have internal levers and springs. These can succumb to corrosion and vibration. If you hit a big wave there is a possibility it could trip the breakers........
100% with you on this one.

I had two SeaRay sports boats with circuit breakers and they were a constant source intermittent problems. Eventually dumped them and fitted fuses.
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Old 29 December 2018, 13:22   #9
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Don't see any point in circuit breakers in a low voltage system personally, just inducing problems for no reason in my opinion
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Old 29 December 2018, 13:27   #10
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I fitted an electrical system in a 2015 build rib with no issues at all. Covering many hours in different conditions. I’ve never personally had issues with corrosion or tripp8ng due to big slams etc.

I’ve re wired my last few boats to have circuit breakers over fuses as I th8nk they are better as no spare fuses are needed to be carried.
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