Beneteau general wiring on alway hot feed to Nav Panel?

[CABixler]

My understanding is there are TWO wires from the batteries that are always hot (live). One is a feed to the stereo to keep the memory and the other is the bilge pump.
My bilge pump as has some issues I believe I resolved but had some general questions.

Comment/Question: The bilge pump switch on the DC breaker panel actually acts as a manual override of the bilge float. On ever boat I have been on. So it's actually a switch versus a breaker correct? I always manually run the bilge pump every time I board to listen to determine if there is water in the bilge. Correct?

What I am curious on is there must be a fuse on a line(s) that comes from the battery to feed the always on part of the stereo and/or the bilge pump. Does anyone know where that fuse is? I know the manual shows a 100 amp fuse I assume next to the battery but I would doubt these smaller gauge wires would be protected?

Thanks
Craig

 

[kappykaplan]

What I am curious on is there must be a fuse on a line(s) that comes from the battery to feed the always on part of the stereo and/or the bilge pump. Does anyone know where that fuse is?

The fuse is integrated into my bilge pump switches.

 

[Davidasailor26]

My understanding is there are TWO wires from the batteries that are always hot (live). One is a feed to the stereo to keep the memory and the other is the bilge pump.
My bilge pump as has some issues I believe I resolved but had some general questions.

Comment/Question: The bilge pump switch on the DC breaker panel actually acts as a manual override of the bilge float. On ever boat I have been on. So it's actually a switch versus a breaker correct? I always manually run the bilge pump every time I board to listen to determine if there is water in the bilge. Correct?

What I am curious on is there must be a fuse on a line(s) that comes from the battery to feed the always on part of the stereo and/or the bilge pump. Does anyone know where that fuse is? I know the manual shows a 100 amp fuse I assume next to the battery but I would doubt these smaller gauge wires would be protected?

Thanks
Craig

What you described is basically what they did on our 37. There’s a wire from the battery switch to a glass fuse holder in the same compartment. From there one wire goes to the bilge pump and the other to the stereo. Yes, this means that a nearby lightning strike that fries the stereo can also disable the bilge pump. Thanks for that Beneteau. The switch on the panel for the manual override is not a breaker, but the panel has fuses on the back for each circuit.

Caveat - I don’t know if the previous generation was done the same way.

 

[Ralph Johnstone]

My understanding is there are TWO wires from the batteries that are always hot (live). One is a feed to the stereo to keep the memory

I can only tell you that on a 1999 Hunter 310 from the factory, the in-line fuse for the bilge pump is located at the battery post. There was no permanently hot wire available to the stereo memory. I question if this memory was available on stereoes back in '99. I ran my own wire to the stereo with its own in-line fuse from the hot side of the main DC breaker.

 

[CABixler]

The fuse is integrated into my bilge pump switches.

The fuse is integrated into my bilge pump switches.

You mentioned switche(s) do you have two? and I assume it's on you Pearson? Are they right at the battery? I assume a different set up. Thanks

 

[CABixler]

What you described is basically what they did on our 37. There’s a wire from the battery switch to a glass fuse holder in the same compartment. From there one wire goes to the bilge pump and the other to the stereo. Yes, this means that a nearby lightning strike that fries the stereo can also disable the bilge pump. Thanks for that Beneteau. The switch on the panel for the manual override is not a breaker, but the panel has fuses on the back for each circuit.

Caveat - I don’t know if the previous generation was done the same way.

I will look under the open stairs in the engine area. I am not sure how the could provide constant power and not subject it to any lightening surge. I wonder if the lightning hight, while it would toast the stereo not sure if it would flow back to the battery as there is not a complete path. But I'm sure it could as well as everything else.

 

[Davidasailor26]

I will look under the open stairs in the engine area. I am not sure how the could provide constant power and not subject it to any lightening surge. I wonder if the lightning hight, while it would toast the stereo not sure if it would flow back to the battery as there is not a complete path. But I'm sure it could as well as everything else.

Lightning does all kinds of crazy and unpredictable things. I guess my point was that by sharing a fuse between the stereo and bilge pump any failure of the stereo (a comfort/convenience system) could also take out the bilge pump (a safety critical system). It feels to me like splitting those out onto separate circuits would be more prudent.

 

[CABixler]

Lightning does all kinds of crazy and unpredictable things. I guess my point was that by sharing a fuse between the stereo and bilge pump any failure of the stereo (a comfort/convenience system) could also take out the bilge pump (a safety critical system). It feels to me like splitting those out onto separate circuits would be more prudent.

What is interesting on my B331 the bilge pump is attached with the other two pumps to the plywood wall panel in the "pump house" aka the head sink cabinet. Bilge, Freshwater, Shower/Ice Sump as well as the filter screens. Nicely done but my only objection is the fastened the very plastic nice round circuit junction box. next to the pumps but the bilge pump is was high and under and a bear to get to. Plus I am a larger guy. Wish the lined them up on the bottom of the layout easy to get to. But over all a nice set up.

 

[kappykaplan]

You mentioned switche(s) do you have two? and I assume it's on you Pearson? Are they right at the battery? I assume a different set up. Thanks

I have two bilge pumps, so two switches. They have three positions: auto, off, and manual. The normal position is auto. The switches are mounted at the nav station.