Marinco 50 to 30 Adapter differences.

MonacoMike

MonacoMike

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Sep 15, 2009
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Indiana lakes and Lake Michigan
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2000 Cruisers 3870
8.2 Mercs
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85 Sea Ray Monaco 197
260hp Alpha 1
What is the real world difference between these adapters? It appears to me one only does 125v and the other does 125v and 250v. Is there any reason not to get the one that does both? I want this adapter because I know eventually I will want to use a transient slip with only 50 amp and will need an adapter and want to buy before I have to pay though the nose at some marina that doubles prices on this stuff.

Y Adapter, 50A 125/250V Male To (2) 50A 125/250V Females 165AY
http://www.marincopowerproducts.com/en/165ay

Y Adapter, 50A 125V Male To (2) 30A 125V Females Part # 152AY
http://www.marincopowerproducts.com/en/152ay



MM
 
Last edited:
Looks like the 125 only one has a 15 amp male to a wall outlet, not a slip type of outlet. You would not be able to run much on the boat with it. i have used something like it in the winter to charge the batteries from a parking lot outlet.

The 50A one is the one you need to have for those marinas where you want to run everything on the boat.
 
Does this help? The "pattern" of the plugs are different for the various amperage and voltage combinations.
marinco-shorepower-eel-y-adapters.jpg
 
douglee25 said:
One is for 50A and the other is for 30A.

Am I missing something?
Click to expand...

No. I am. Posted the wrong link. LOL

Corrected above and here.

What is the real world difference between these adapters? It appears to me one only does 125v and the other does 125v and 250v. Is there any reason not to get the one that does both? I want this adapter because I know eventually I will want to use a transient slip with only 50 amp and will need an adapter and want to buy before I have to pay though the nose at some marina that doubles prices on this stuff.

Y Adapter, 50A 125/250V Male To (2) 50A 125/250V Females 165AY
http://www.marincopowerproducts.com/en/165ay

Y Adapter, 50A 125V Male To (2) 30A 125V Females Part # 152AY
http://www.marincopowerproducts.com/en/152ay



MM
 
The 165AY requires a 250v stantion. That is 2 125v 50 amp legs, out of phase that make up the 250v/50 power. The 165AY adapter will deliver each 50A Leg to each 30A pigtail. You are delivering a full 30 amp to each of the bosts main breakers, allowing FULL current draw (30amp each-60 amp total)

The 152AY adapter is different. It is a single 50A 125v circuit that splits to 2 - 30 amp pigtails. Maximum current draw on the boat is now limited to the pedestal @50 amp.

The 2 adapters are not interchangeable, and have different pin layouts (125 has 1 outward tab, 250 has 2 tabs)

The 165AY is a very common adapter to have and i have only seen 2 marinas locally wtih the 152AY - 50/125 socket (both federal parks).
 
Well, if you travel outside the country it would allow you to connect to a 220V and still drop it to 120V, which is neat. Not sure that there are domestic 220V outlets, but it does sound like it increases your options
 
The top one on the single 50 amp side is only 125 volts. The second one, on the single 50 amp side is 125/250 volts (dual capability)
 
PMC said:
The 165AY requires a 250v stantion. That is 2 125v 50 amp legs, out of phase that make up the 250v/50 power. The 165AY adapter will deliver each 50A Leg to each 30A pigtail. You are delivering a full 30 amp to each of the bosts main breakers, allowing FULL current draw (30amp each-60 amp total)

The 152AY adapter is different. It is a single 50A 125v circuit that splits to 2 - 30 amp pigtails. Maximum current draw on the boat is now limited to the pedestal @50 amp.

The 2 adapters are not interchangeable, and have different pin layouts (125 has 1 outward tab, 250 has 2 tabs)

The 165AY is a very common adapter to have and i have only seen 2 marinas locally wtih the 152AY - 50/125 socket (both federal parks).
Click to expand...

I understood them to not be interchangeable, but it looks from Jaybeaux chart that the 165AY model will do both whereas the 152AY will only do one function?

MM
 
My splitter is 50amp 250V to two 30amp 125V. I use it everywhere.. Alot of times as a transient the 30amps are full and the 50amps are empty... I even use it at the home dock.
 
MonacoMike said:
I understood them to not be interchangeable, but it looks from Jaybeaux chart that the 165AY model will do both whereas the 152AY will only do one function?

MM
Click to expand...
You will not be able to use the 165 on a single pole circuit. It will not fit, nor is the wiring the same.
 
Blueone said:
My splitter is 50amp 250V to two 30amp 125V. I use it everywhere.. Alot of times as a transient the 30amps are full and the 50amps are empty... I even use it at the home dock.
Click to expand...
I agree with Blueone. The 125/250 adapter is very common. This is the 165AY
 
It is not too common for for marinas to have the 125/50 plugs. Years ago, maybe it was "a thing"....but most have the 250v.

If you need an adapter, my odds are with the 165AY

Around here on Long Island (south shore) we refer the 50/125 as to the Watch Hill adapter...........
 
PMC said:
You will not be able to use the 165 on a single pole circuit. It will not fit, nor is the wiring the same.
Click to expand...

Trying to understand this, the top two options both say the do 50a 125v locking while the second has a slash indicating it also does 50a 250v locking. Am I missing something?

MM
 
MonacoMike said:
So the 165AY model?

MM
Click to expand...
No..I dont think so...it looks like 165AY is all 50amp. If you need two 30amp 125v for the boat. Then you need Male 50amp 250v for the shore power and split to 2 - 30amp female to plug your 2 shore cables into
 
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