Marinco 50 to 30 Adapter differences.

Discussion in 'General Discussion' started by MonacoMike, Jun 20, 2019.

  1. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    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: Jun 20, 2019
  2. superwa

    superwa Active Member GOLD Sponsor

    173
    Jul 27, 2013
    Rhode Island
    2001 Sea Ray Sundancer 380
    Mercruiser horizon 8.1S
    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.
     
  3. Jaybeaux

    Jaybeaux Well-Known Member SILVER Sponsor

    570
    Jan 3, 2016
    Upper Potomac River
    420 Sundancer 2004
    Naught On Call
    Cummins 6CTA-8.3's with V-Drives
    9KW Onan Genset
    Does this help? The "pattern" of the plugs are different for the various amperage and voltage combinations. marinco-shorepower-eel-y-adapters.jpg
     
  4. douglee25

    douglee25 Well-Known Member

    Jan 13, 2008
    Dallas, TX
    Cruisers 3575
    Twin 7.4l
    One is for 50A and the other is for 30A.

    Am I missing something?
     
  5. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    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
     
  6. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    The question is, what is the difference in the top two on your list?

    MM
     
  7. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    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).
     
  8. superwa

    superwa Active Member GOLD Sponsor

    173
    Jul 27, 2013
    Rhode Island
    2001 Sea Ray Sundancer 380
    Mercruiser horizon 8.1S
    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
     
  9. Jaybeaux

    Jaybeaux Well-Known Member SILVER Sponsor

    570
    Jan 3, 2016
    Upper Potomac River
    420 Sundancer 2004
    Naught On Call
    Cummins 6CTA-8.3's with V-Drives
    9KW Onan Genset
    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)
     
    JVM225 likes this.
  10. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    So I want to order the Y Adapter, 50A 125/250V Male To (2) 50A 125/250V Females 165AY model?

    MM
     
  11. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    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
     
  12. Blueone

    Blueone Well-Known Member SILVER Sponsor

    Jan 24, 2007
    Lake Erie, Ohio
    2004 420 Sundancer
    Cummins 6CTA 450's
    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.
     
  13. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    You will not be able to use the 165 on a single pole circuit. It will not fit, nor is the wiring the same.
     
  14. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    So the 165AY model?

    MM
     
  15. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    I agree with Blueone. The 125/250 adapter is very common. This is the 165AY
     
  16. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    450 Sundancer
    3126 Cat's
    A 50/120 & a 50/240 will not plug into each other's outlets...
     
  17. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    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...........
     
  18. MonacoMike

    MonacoMike Well-Known Member PLATINUM Sponsor

    Sep 15, 2009
    Indiana lakes and Lake Michigan
    2000 Cruisers 3870
    8.2 Mercs
    85 Sea Ray Monaco 197
    260hp Alpha 1
    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
     
  19. Blueone

    Blueone Well-Known Member SILVER Sponsor

    Jan 24, 2007
    Lake Erie, Ohio
    2004 420 Sundancer
    Cummins 6CTA 450's
    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
     
  20. Blueone

    Blueone Well-Known Member SILVER Sponsor

    Jan 24, 2007
    Lake Erie, Ohio
    2004 420 Sundancer
    Cummins 6CTA 450's
    Look at Jaybeaux diagram (Post #3)... I have the Y504-2-30
     

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