1982 360 SRV Charger Question

[HotDirk01]

That's a great-looking boat. I hope to have mine and similar condition by this time next year. By the way, can you suggest to me the draft on this boat?

 

[Soulshine]

A skinny 28” believe it or not.

I’ve had mine 3 years now and would be glad to help in any way I can, but I still have a long way to go myself.

 

[Zero Fuks]

The black wire coming from the shore plug outlet should run over to the main breaker from there it goes back to the charger. You also stated fuse and a fyi to not to confuse anyone fuses are 12 volt Breakers are 110. And out of curiosity if your chargers in good working order why change it? I was going to add one when I didn't think I had one once I found it and verified it's in good working order there wasn't a chance in hell I was going to change it because unlike this one I'm not confident a brand new one would still be in good working order in 33 years I think I would be pulling out a better part for a sub par replacement. Just food for thought but also remember nothing on a boat will get Shore power without going through a breaker.

 

[ttmott]

From the boat's description it has a generator; consequently the AC circuitry is or must be a bit different.
With a generator, both the Hot (black) and Neutral (white) shore power conductors must be routed to a shore/generator switch and both must be capable to be switched between shore power and generator power simultaneously. It is from this switch that all of the boat's AC power circuit breakers and loads like the battery charger be located.
The shore power ground (green) should go to a galvanic isolator then from the isolator to the AC ground buss (all devices), generator chassis, DC ground buss, and also the boat's bonding system; this is the vessel's grounding/bonding network.
The reason the neutral must be switched at the generator/shore switch is the ground and neutral are bonded together at the generator as that is the source power when the boat is making it's own power (ABYC Standard E-11). The neutral and ground must not be bonded together at the boat (the load) when on shore power (NFPA 70); BTW NFPA 70 is the National Electrical Code (NEC).
Now, marina's are installing/upgrading their dock power systems to include ground fault interrupter devices (NFPA 70 - Article 555) which resolves a major safety issue at docks especially fresh water installations.
GFI devices measure current on the hot and neutral conductors and if that current is not equal (a difference of 100ma or greater for marina dock systems) the GFI device will trip and shut down either the power pedestal or the entire dock power supply. So, the question is - how can the current not be equal on both the supply (black) and return (white)? The answer is either the ground and neutral are bonded on the boat (generator) or there is a fault in the electrical system on the boat and the return current is shared between the neutral and ground conductors returning to either the dock ground conductor or into the water around the boat and, consequently, causing an imbalance in current between the hot and neutral shore power conductors.
So, obviously, the last thing you need is an electrical safety issue on the boat and also to continuously trip power from the dock.
It is important the electrician you are having look at the boat be familiar with not only the NEC but also ABYC.
Tom

 

[HotDirk01]

Good call. By the way, we’d love to see some pictures of your boat at some point. We love the classics here.

Here is pic 1982 360 SRV