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Dual 50amp to dual 30amp
- rob37w
- Scurvy Dog
- Posts: 3
- Joined: February 3rd, 2021, 8:46 pm
- Vessel Info: 1996 Carver 370 Aft Cabin
- Location: Knoxville, TN
Dual 50amp to dual 30amp
1996 Carver 370 Aft Cabin
Question: The boat has dual 120v 50amp plugs. My dockside hookup is dual 120v 30amp plugs. Am I correct to use two 30amp cables and put a male 30amp to female 50amp adapter on the boat side?
Or is there a better way to do this?
- buster53
- Admiral
- Posts: 996
- Joined: May 12th, 2017, 10:41 am
- Vessel Info: 2001, Carver 356
- Location: Lower Potomac, VA
- Has thanked: 8 times
- Been thanked: 254 times
Re: Dual 50amp to dual 30amp
Or you could replace the 50 amp boat side connections with 30 amp. Either way will work. I suggest going with the improvised cord. I’m surprised the boat doesn’t already have these cords (or some kind of adaptor) as I’ve never seen a marina with 120-50 amp dockside service. It has to be rare.
- Midnightsun
- CYO Supporter
- Posts: 2851
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 257 times
- Been thanked: 1099 times
Re: Dual 50amp to dual 30amp
That being said, another option is converting 1 of your existing inlets to 125/250 50 which is a common shore power receptacle albeit far from the 30a service which is pretty much standard everywhere. This option gets expensive fast because to hook into dual 30a shore power you will require a rather special "reverse Y" adapter which does not come cheap, the cords and connectors are much more. Just another option to consider which will now require a single cord as opposed to 2 not to mention if you plug into a 50a receptacle, you will get the full 100a Carver intended the boat to have.
To do this you do need to have a good electrical back ground or hire an electrician, not recommended if you need to watch you tubes to accomplish this.
- buster53
- Admiral
- Posts: 996
- Joined: May 12th, 2017, 10:41 am
- Vessel Info: 2001, Carver 356
- Location: Lower Potomac, VA
- Has thanked: 8 times
- Been thanked: 254 times
Re: Dual 50amp to dual 30amp
We managed our 3807 for 7 years with the reduced power of twin 30 amp cords. We ran 3 AC units on one cord and the house on the other. Anytime we knew we would be pulling a lot of amps, we would just switch off the water heater and 90% of the time, that was enough.
Biggest amp eaters...stove, microwave, water heater and hair dryer. You quickly learn what you can and cannot run at the same time.
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- CYO Supporter
- Posts: 5812
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
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Re: Dual 50amp to dual 30amp
I wouldn't replace the inlets on the boat, that might trigger an electrical safety red flag by a savvy surveyor. Use adaptors or retrofit your existing cord. Having said that, a reverse Y adapter with 2x30 to a 50 is technically what you should be using as it's safer. They are pricey and I haven't met one yet that doesn't fail after a while but such is boating.
- ColRon
- Admiral
- Posts: 555
- Joined: April 24th, 2017, 6:06 pm
- Vessel Info: 1989 Carver Santego 3867
“Escape Plan” - Location: Murray, KY
- Has thanked: 76 times
- Been thanked: 148 times
Re: Dual 50amp to dual 30amp
1989 Carver Santego 3867
“Escape Plan”
Murray, KY
- g36
- Admiral
- Posts: 1945
- Joined: April 7th, 2014, 6:07 pm
- Vessel Info: 1997 Carver 405
- Location: Soddy Daisy TN.
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Re: Dual 50amp to dual 30amp
Crusader xli
The Black Pearl
Soddy Daisy Tn.
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