Thread Tools Search this Thread Display Modes
Old 07-01-2019, 06:54 AM   #1
Senior Member
Dune's Avatar
City: Coastal SC
Vessel Model: Viking 65 CP MY (run at trawler speeds !)
Join Date: Jul 2015
Posts: 389
Dock to boat shore power connector fried...theories as to why ?

Happened sometime during the week, one leg of 220 destroyed/melted at the boat connector (i.e. 110 house current works but 220 A/C units don't). Connection at boat was good...twisted and locked. No hints of trouble otherwise, looks perfect at dock pedestal end, no breakers tripped anywhere, A/C (and all else) units work fine via generator.

Dune is offline   Reply With Quote
Old 07-01-2019, 08:14 AM   #2
Valued Technical Contributor
DavidM's Avatar
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 5,616
Shore power connectors live a tough life, often at near maxumum amperage and with corrosion on the contacts due to living on the sea. So they don't last. Maretron and others have beefed up connections/cables to help prevent it.


DavidM is offline   Reply With Quote
Old 07-01-2019, 08:22 AM   #3
psneeld's Avatar
City: Ft Pierce
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 22,431
50A 125/250V connectors are not perfect but in my world they are pretty reliable as long as the whole system is kept "reasonably" clean, corrosion free and not severely overloaded.

While it is easy to blame connectors, like all accidents, finding the root cause is the best solution to resolving the problem.

Is it overloading, corrrosion, connection....etc...etc? Remember looks can be deceiving as well as security of the connection...doube check then start looking at leg overloading...
psneeld is offline   Reply With Quote
Old 07-01-2019, 08:50 AM   #4
tiltrider1's Avatar
City: Seattle
Vessel Name: AZZURRA
Vessel Model: Ocean Alexander 54
Join Date: Aug 2017
Posts: 2,133
If you don’t know exactly how much current was going through that leg then there is a very good chance you were over loading that leg. Often the most likely cause is some one dropping the power cord in the water which caused corrosion issues that don’t show up till years later.

The other common issue is a loose connection on the back side of the boat socket. No one ever checks that end and after 10 to 20 years connections can loosen up.
tiltrider1 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program

All times are GMT -5. The time now is 12:06 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012