50 amp to 30 amp

[NEW ADVENTURE]

We purchased a 1998 Sea Ray 450 Sundancer and when we tried going from 50 amp cord dock hookup to 30 amp pigtail to 30 amp cord we didn't have any AC power to the boat. I checked all the cords for power to the boat but electrical panel showed and didn't have any power. Our boat only has a 50 amp cord and is not long enough when we dock bow in. So we need to buy a longer extension but should I buy a 30 amp or 50 amp?


My question is our boat should be able to have 120 AC with a 30 amp cord shouldn't It?

Thanks
Scott

 

[The Bill Collector]

‘98 450 240/50 we direct connect if possible, next is 2 x 30/120 to 50/240 y adapter and last is 50 or 30 120 to 50 240 that connects to your cord... if using 120 only it doesn’t register at your electrical panel

 

[NEW ADVENTURE]

Thanks Bill, I agree going direct with 50 amp is the best. If I understand you correctly I should purchase Y adapter to hook into my onboard 50 amp cord and 2 30 amp cords to hook into 30 amp hookups. Are you saying I may have had 120 AC it just didn't show on my panel?

 

[The Bill Collector]

If using 1 leg of 120v on my panel it doesn’t register if using the y adapter you are creating 240v and your panel will give you an accurate reading.... my power consumption has never exceeded 30amp draw so my personal recommendation would be to purchase 2 x 30amp cords and the y adapter... 30 amp power is a lot more prevalent in marinas then any other source.

 

[NEW ADVENTURE]

OK I will purchase as to your recommendation, Thanks Bill

 

[Charlesoceanone]

Disclaimer: I am not an electrician and struggle with this so forgive me now! If the pedestal he is using has two 30 amp outlets that are on different phases he would need a smart y adapter (2 30 amp males to a 50 amp female) or simply the reverse y adapter. If the 2 30 amp outlets on the pedestal are not separate phases is that when he needs a reverse y adapter?

 

[The Bill Collector]

When I run into this problem I get a 50' 30amp cord out and go find another pedestal to plug one of the 120v 30amp legs in to...