shore power 20 amp / boat 30 amp adapter?

shore power 20 amp Boat is 30 amp is there a adapter?

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Take a pic of the boat end of the black cord so we can see what you are working with
 
JVM225 said:
In response to my asking if you could post a picture of what you have on your boat, you posted two pictures.
1. A (yellow) female 30 Amp twist lock receptacle.
2. A male 15 amp plug.
Does that mean you have a (yellow) female 30 amp receptacle mounted on the side of your boat? That isn’t typical.
If that’s the case, That could be a part of your problem. There should be a 30 amp male mounted on the side of your boat.
Does the shorepower cord you used at your previous marina have males on both ends?
Is it possible a previous owner installed a female instead of a male on the side of the boat by mistake or for some unique reason?
You may want to swap the female receptacle on the boat for a proper male with a flip down cover.
That will enable you to use a standard 30 amp shore power cord. You would connect the female end of the cord to your boat, and the male end to the receptacle on the dock.
If the dock doesn’t have a 30 amp receptacle, then you could use the Marine 30-20 adapter I posted in an earlier reply.
If the picture of the yellow receptacle you posted is not a picture of what is mounted on the side of your boat, then if you can take a picture of what is on the side of your boat we can probably help you better.
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Robert Chazz said:
View attachment 60017 View attachment 60018
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Thank everyone for the help. I obviously have some rube goldberg setup from last owner. I think maybe it's time to get a pro to look at it.
 
Dock yellow 20 amp female locking. Boat end that needs to plug into dock is a standard looking household plug.
 
If the plug mounted to the boat is a male twist lock and the power cord end is a twist lock female you good to there. The other end of your power cord should have had a 30A twist lock . Remove the standard 110v blade type and wire in a 30A twist lock. Just remember it`s Black to Brass ans White to Silver, Green to Ground screw that should be green
I have a good 30a cord with the pigtail, PM me if interested.
 
Bt Doctur said:
If the plug mounted to the boat is a male twist lock and the power cord end is a twist lock female you good to there. The other end of your power cord should have had a 30A twist lock . Remove the standard 110v blade type and wire in a 30A twist lock. Just remember it`s Black to Brass ans White to Silver, Green to Ground screw that should be green
I have a good 30a cord with the pigtail, PM me if interested.
Click to expand...
You got it, I think that's the right way to go. Thx
 
upload_2018-9-12_9-34-8.jpeg
 
Bt Doctur said:
If the plug mounted to the boat is a male twist lock and the power cord end is a twist lock female you good to there. The other end of your power cord should have had a 30A twist lock . Remove the standard 110v blade type and wire in a 30A twist lock. Just remember it`s Black to Brass ans White to Silver, Green to Ground screw that should be green
I have a good 30a cord with the pigtail, PM me if interested.
Click to expand...
 
Lazy Daze said:
The black, 3-prong 15a plug can't be the boat side. If so, you have some sort of Frankenstein's monster setup.

Are you sure your cord is one piece... as opposed to having an adapter in there? FYI, that yellow cord/connector is a 20a connector.

BUT... Let's stop running around in circles here. Forget about what "came with the boat". What does your boat have for a connection and what does the marina have for a connection? Those are the only two pieces of the puzzle you need to focus on. Get the proper cord for your boat, then get whatever adapter you need to hook into the dock.
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It looks like I need a S20-30 for shore and replace boat cord end with a 30 amp round connector.
 
OK, my head is spinning trying to follow all of this.

#1: Before you buy anything, get the shore power system checked out to make sure it is wired properly and safe. This has to be the first step, otherwise you may end up with fried electronics, electrical shock/death (on the boat or in the water) and/or fires. I didn't "bold" any of that, but I hope the point is understood.

Doc... you know your thread about not wanting to hand an OB on a soft transom? It could be the same sort of thing happening here. The boat in question has an unknown shore power system as it sounds like the PO did some homemade rigging. I would caution against helping to piece-meal this thing any further until proper installation is verified.

Robert, I don't mean ANY of what I'm saying in a negative way towards you. You're simply trying to make things work. But given the Rube Goldberg stuff going on, helping you "just make it work" is not in anyone's best interest.
 
Robert Chazz said:
It looks like I need a S20-30 for shore and replace boat cord end with a 30 amp round connector.
Click to expand...
Is it possible that this boat didn’t originally have shorepower and someone added it?
If that’s the case, then have someone who knows what they’re doing inspect it.
If it all checks out okay:
The boat end (permanently attached to the boat) should be a 30 amp male twist lock. Not female.
Get yourself the proper 30 amp male receptacle with cover and install it on your boat then go from there.
It’s a relatively simple install, but if you think it may be above your skill level then pay a pro to do it.
The part that is permanently installed on your boat should look like this:
D75E5AEE-3530-4426-A659-8C340634D8F3.jpeg
 
Last edited:
JVM225 said:
Get yourself the proper 30 amp male receptacle with cover and install it on your boat then go from there.
Click to expand...

IF the wiring on the boat is rated for 30a service and everything is installed correctly. At this point, who knows what the PO did... he could of just used a Home Depot, orange electrical cord to run power throughout the boat! :)
 
Lazy Daze said:
IF the wiring on the boat is rated for 30a service and everything is installed correctly. At this point, who knows what the PO did... he could of just used a Home Depot, orange electrical cord to run power throughout the boat! :)
Click to expand...
You may be right!
My first instinct was that a 268 with air conditioning had shorepower installed from the factory, but now starting to suspect that the Air Conditioning the OP is worried about running may not be an original factory install either.
 
This is truly a mess to sort out. The OP must have a surveyor or qualified marine electrician/technician evaluate what is currently there and what needs to be added or changed for safety. Please do not risk your family and friends, get this checked professionally.

MM

Land based electricians likely will not know safety codes of marine use.
 
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