Waterproof electrical connectors.

[Ex-SolentBoy]

I need to join a wire about 3mm dia. Single wire to single wire. Small transformers so 220v in , 12v out.

What would you recommend?

The connectors won't be submerged but may get damp
It's a tight space so nothing big
I do not want to buy specialist tools as there are only 10 wires and I will not be doing the job again.

Thanks

 

[sarabande]

Bulgin waterproof connectors ?

http://bulgin.co.uk/Products/Buccaneer/BuccaneerStandard.html

You might need to ferret around for 3mmsq wire though.

 

[whipper_snapper]

Solder and adhesive-lined heatshrink

 

[nimbusgb]

Solder and adhesive-lined heatshrink

+1 if you don't need to disconnect regularly

 

[Elessar]

I need to join a wire about 3mm dia. Single wire to single wire. Small transformers so 220v in , 12v out.

What would you recommend?

The connectors won't be submerged but may get damp
It's a tight space so nothing big
I do not want to buy specialist tools as there are only 10 wires and I will not be doing the job again.

Thanks

http://www.vehicle-wiring-products.eu/VWP-onlinestore/terminalspreins/heatsealterms.php

mole grips and a match will work, if you can stretch to a proper crimp tool and a mini blow torch soldering iron then you're at pro standard. I know many don't agree but I don't solder joints on a boat, there's too much to go wrong.

 

[prv]

Sounds like you need to clarify whether the cables will need to be undone, or can be permanently jointed. Since you mentioned a connector I assumed the former, but perhaps you just meant any means of joining them.

Pete

 

[tinkicker0]

If you require a multiplug type connection then AMP superseal is the way to go. When I did a major rewiring job on my boat, all connections to my new loom were AMP superseal and 4 years on, no problems at all.

 

[jamie N]

If you require a multiplug type connection then AMP superseal is the way to go. When I did a major rewiring job on my boat, all connections to my new loom were AMP superseal and 4 years on, no problems at all.

Seaeye Marine in Fareham manufacture 'Metal Shell' connectors. These connectors are rated to -1000 metres and are reusable.
They're the best wet connector in the world, and come in many different sizes and pin outs.
I'm not connected with the company, but do use and specify there use a professional capacity offshore.

 

[erbster]

If you require a multiplug type connection then AMP superseal is the way to go. When I did a major rewiring job on my boat, all connections to my new loom were AMP superseal and 4 years on, no problems at all.

Would you consider them suitable for use above deck? I need a connection for the nav lights on my trailer sailer (needs regular connection/disconnection for mast up/down).

 

[nimbusgb]

Would you consider them suitable for use above deck? I need a connection for the nav lights on my trailer sailer (needs regular connection/disconnection for mast up/down).

Yes, they are used under the bonnet in automotive applications.

 

[Pye_End]

http://www.sunstore.co.uk/MC4-Solar-Connectors-Male-and-Female.html and some self amalgamating tape.

 

[nigelmercier]

... and some self amalgamating tape.

While SA tape is handy to have, it isn't as good as adhesive heat-shrink, where the latter can be used.