How to add a 12 volt socket, need help

traveller

Member
Joined
Aug 12, 2020
Messages
18
Location
Thousand Oaks, CA
Pretty much no nothing about electrical systems.

I would like to add a 12 volt socket to power my ARB fridge. My FWC currently has one by the front door, but I would like to add another socket outlet in the box where all the electrical wires are. I would then be able to mount my fridge on the bench and run the wire out of the way of everything.

I'll include a few pictures of the electrical stuff. Could someone tell me how to wire the 2 wires from the socket too?

Appreciate all the help.

IMG_0468.jpg


IMG_0469.jpg
 
It is hard to answer this with just the photos. There are no spare fuse locations to use so you will need to use an inline fuse. You need to connect the inline fuse to the power source for the fuse block and this will run to the positive/center pin on your power socket. The negative connection on the power socket will connect to the bus bar with all of the black wires in your picture. You can add the negative ring terminal to one of the existing screws, have the new wire connect to the side or opposite the current connector to make sure you get a good connection. Look for a Blue Sea power socket, they seem o be much nicer than some of the generic ones.
 
I'm an electrical newbie. Could you tell me specifically where to connect the positive and negative wires from the new power socket. I don't know what/where the positive and negative wires are in the picture. Please be as specific as possible, newbie here.
 
I would connect directly to the battery. Use pretty thick wires (I don't know the refrig you are going to use and what type of amps it draws; the more amps, the thicker the wire) but a 12v socket can only handle so much current so it won't have to be super thick. As the other person mentioned, put an inline fuse on the side that connects to the + terminal on the battery that goes to the socket. The black wire on the socket goes to the - (negative) side of the battery.
 
Option #1: You could combine the new 12v outlet(positive wire) with the old 12v outlet position(orange wire) that is already in in use. Disconnect the orange wire at the fuse panel, install a double male spade adapter and piggy back the new 12v outlet positive wire and the orange wire to the same terminal. Option #2: You could also use that 15 amp position to provide power to a small 2 position buss and connect each 12v + to the new buss using inline fuses. IMPORTANT: If you do either option, you will need to install inline fuses(7.5 amp max each) to each positive lead going to the outlets. NOTE: this will only work if the combined load(amp draw) at both outlets doesn't exceed 15 amps. Connect the new negative wire to the negative buss(where all the black wires terminate) as others have mentioned. One thing to consider when you buy the new socket is getting it prewired or not. You want heavy enough wire to reduce voltage drop or amp draw will go up especially important on a long wire run. I based the above options on the fact that most people do not require/use 15 amps at a 12v outlet. Option #3: If in doubt have a pro do the work or find a qualified friend.
 
I found a heavy duty 12V outlet on Amazon rated at 25 amp. I wired it up directly to the battery with a 25 amp in-line fuse, using 10 awg wire. The plug is located just a foot or two from the battery, in the space next to the battery compartment, and under the sink area. For the in-line fuse I found one on a 10 awg wire. We use this to plug in my wife's oxygen concentrator.
 
Zirdu said:
I found a heavy duty 12V outlet on Amazon rated at 25 amp. I wired it up directly to the battery with a 25 amp in-line fuse, using 10 awg wire. The plug is located just a foot or two from the battery, in the space next to the battery compartment, and under the sink area. For the in-line fuse I found one on a 10 awg wire. We use this to plug in my wife's oxygen concentrator.
Do you happen to have a link?
Thanks.
 
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