A/c and stove on shore power

[kozmedic]

When I am at dockside, I am unable to run my salon ac and cook at the same time. I have two 30 amp cords to the boat. The stove draws 26.5 amps alone, so there is not enough power to be cool when we cook. Running the generator that supplies two 50 amp service, keeps us cool and cooking, but really don't want to run the generator at dockside. Has anyone else had this issue and if so, how did you resolve it.
:smt021

 

[Hampton]

We don't have that problem. What year/size of boat?

 

[fc3]

When I am at dockside, I am unable to run my salon ac and cook at the same time. I have two 30 amp cords to the boat. The stove draws 26.5 amps alone, so there is not enough power to be cool when we cook. Running the generator that supplies two 50 amp service, keeps us cool and cooking, but really don't want to run the generator at dockside. Has anyone else had this issue and if so, how did you resolve it.
:smt021

That doesn't sound right. 26.5 amps would be 3,200 watts. That stove would pretty much require it's own dedicated 30A circuit. Since most marine stoves have 1kw to 1.2 kw elements, you'd have to have a three burner unit with all three operating at full power. Three burner stoves are unusual, but that's the only possible answer. Anyway, the simple solution would be just to use only one or two burners.

Also, a generator that can supply two 50 amp services would have to be a 12 KW (50 amp * 2 legs * 120 V = 12,000 watts) .
unit, which I've never seen in boats with dual 30A shore power service.

Need more and better quality data.


Short answer: my wife's solution to cooking while we're on the boat is to make dinner reservations.

 

[Air O'Nautical]

We run most everything with no problems.

I thinking bad connection at the dock or boat inlet.
Hold the cable at each end and see if its hot/warm.
??

 

[tbirdvet]

I have similar issue but using only one cord. I have the dock 30A split into both of my boat circuits. If I run AC and turn on the cockpit BBQ the 30A dock breaker trips. So now I just watch what I turn on at the same time. However, using my gen. no issue. If you are using two cords with 30A each you should be OK.

 

[MarkD]

you didnt say whether or not you were tripping a breaker or whether the AC and Stove were on differnt cords. Like Frank said, we need alot more info.

Just as an aside, are you 100% sure both 30 amp outlets are in fact separate at the dock hookup? my marina had split one of my two 30 amp circuits into a second leg to provide another twistlock outlet to a dockmate. It was lazy and stupid to do that, and I found out and had them change it back. After all, I pay for electric and it should be right.

 

[roadkingh1]

When I am at dockside, I am unable to run my salon ac and cook at the same time. I have two 30 amp cords to the boat. The stove draws 26.5 amps alone, so there is not enough power to be cool when we cook. Running the generator that supplies two 50 amp service, keeps us cool and cooking, but really don't want to run the generator at dockside. Has anyone else had this issue and if so, how did you resolve it.
:smt021

FC3 is correct that is a lot of amperage. I have two 30 amps services the a/c is on one circuit and the stove is on the other. I can tell you that when I lite up all three I draw about 22.5 amps(900 watts/element) and I have no problem. You may have some high resistance contact that is corroded causing you to draw excessive current. You did not mention if the breaker was tripping and if it was tripping at the pole or at your panel. Let us know. Also you may want to check the power cord connection on your boat. I just finished replace both the male and female connection due to corrosion and burning spot.

 

[roadkingh1]

When I am at dockside, I am unable to run my salon ac and cook at the same time. I have two 30 amp cords to the boat. The stove draws 26.5 amps alone, so there is not enough power to be cool when we cook. Running the generator that supplies two 50 amp service, keeps us cool and cooking, but really don't want to run the generator at dockside. Has anyone else had this issue and if so, how did you resolve it.
:smt021

FC3 is correct that is a lot of amperage. I have two 30 amps services the a/c is on one circuit and the stove is on the other. I can tell you that when I lite up all three I draw about 22.5 amps(900 watts/element) and I have no problem. You may have some high resistance contact that is corroded causing you to draw excessive current. You did not mention if the breaker was tripping and if it was tripping at the pole or at your panel. Let us know. Also you may want to check the power cord connection on your boat. I just finished replace both the male and female connection due to corrosion and burning spot.

 

[rondds]

How can one be BOATLESS, but still have a Searay with shore power?

If you have twin 30amp hookups and two main breakers on the panel, the AC should be one breaker and the house stuff (stove, microwave, converter, outlets, etc.) should be on the other. Consequently, a big draw on one should not affect the other.

Check your cable ends for burn marks or any melting - also check the male connectors on the boat. Could be bad cables but can't be sure b/c you haven't made the symptoms clear (breaker trips? AC shuts down? insufficient voltage?)

 

[sbw1]

He might be running a water heater instead of shutting it down while he cooks. Fridge, same thing. I have one 30 amp and a splitter plugged in most of the time. Not a problem to run a stove or microwave and a/c. I do manage the power and turn the water heater fridge off when the boat is just at our dock and we are using it to putz around our small lake. We do keep our ice maker powered up all of the time. When we cruise or stay on the hook, I have plenty of extra power and don't think about power, but you can get by with 30 amps and cook with 30 amps.