12 volt DC plugs and sockets

is there a standard / standards for automotive / nautical 12v contacts?
been buying 12v car plugs and contact boxes that sometimes easely break up eachother and even changing a car lighter sometimes wont fit
some plugs have fuses of various amp build in and can be low cost as 3.50 $/€ but only at specialist webshops and than still fall out of their sockets
now connecting this older cooler i see this schuco plug that looks good but nowhere a socket for it, what to use replacing it..
isnt there any standarisation for 12v DC plugs and sockets? NMEA has any guidelines?

 

There is a difference between a cigarette lighter socket and a power supply. The lighter socket is all metal and has a lock that releases when it gets hot. Power supplies are usually plastic and will melt if you put a lighter in.

 

And you know this because...??? He he

 

okay, most plastic sigarette lichter housings have a light and some magnetic metal hold inside
yet i dont really like those plastic sockets and plugs eighter but that stuff gets build into yachts..

btw, shown illustration has extra ring i lost, thought it was a better system

 

There are specific high amp - low voltage connectors for wet service. Some are even wet matable. Try SEACON: http://seaconworldwide.com/products/electrical-wet-mate/
or Burton: http://www.cooperindustries.com/con...es/interconnect/products/subsea/wet_mate.html

 

No, of course there is no marine standard. Even domestic plugs and sockets within the EU are not uniform. Nobody seems to care that an internationally marketed appliance must have at least 5 different mains cords.

The small 12V plugs used in caravans and mobile homes are of reasonable quality and price, but must stay dry. In a true marine environment even the "golden" pins in the very pricey plugs Garmin uses, turn green after one season.